You searched for subject:(Phylogeny).
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1.
Hancock, Lillian Pine.
Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae).
Degree: Ecological and Evolutionary Biology, 2018, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:792651/ 
► Most important organismal adaptations are not actually single traits, but complex trait syndromes that are evolutionarily integrated into a single emergent phenotype. In plants, crassulacean…
(more)
▼ Most important organismal adaptations are not actually
single traits, but complex trait syndromes that are evolutionarily
integrated into a single emergent phenotype. In plants,
crassulacean acid metabolism (CAM) is a complex trait that improves
water use and photosynthetic efficiency under drought and
temperature stress. Though CAM is an important and ubiquitous
ecological adaptation, having evolved hundreds of times from the
more common C3 photosynthetic pathway, we still know very little
about its evolutionary assembly. In addition to fully expressed
constitutive CAM, there are other well-known phenotypes that
perform small amounts of CAM in an otherwise C3 background (i.e.
C3-CAM intermediates). Untangling the evolution of CAM requires
piecing together the genetic, biochemical, anatomical,
physiological, and ecological aspects of this trait and
reconstructing the evolutionary order of its assembly. In this
study we characterize most of these properties associated with CAM
evolution across Australian Calandrinia and species representatives
from the Montiaceae and wider sub-order, Portulacineae. We use a
targeted gene capture approach to sequence hundreds of loci across
Australian Calandrinia (~70 species) and Montiaceae, resulting in
the first and complete
phylogeny for the lineage. We estimate the
divergence of Australian Calandrinia from its sister lineage to ~
30 Ma, concurrent with separation of Australia from Antarctica, and
show that although the lineage radiated across inland Australia
during the mid-Miocene, coincident with the initial onset of
aridity, diversification slowed dramatically with the establishment
of severe aridity. Through robust phylogenetic and phenotypic
analyses we demonstrate that C3-CAM phenotypes are anatomically
intermediates between C3 and full CAM, and that the evolution of
CAM biochemistry precedes the evolution of full CAM morphological
and anatomical traits. Given the number of C3-CAM reversals
detected within Australia Calandrinia and the Montiaceae, we
propose a model of CAM evolution that allows for lability and
reversibility among C3-CAM phenotypes and C3 photosynthesis, and
where C3-CAM evolves prior to the realization of full CAM. Finally,
we hypothesize that once a species evolves full CAM, with the
associated anatomical changes such as extreme succulence, large
cells, and little intercellular airspace, reversibility back to C3
or C3-CAM photosynthesis may no longer be evolutionarily
accessible.
Advisors/Committee Members: Edwards, Erika (Advisor), Kellner, James (Reader), Weinwreich, Daniel (Reader), Holstum, Joseph (Reader).
Subjects/Keywords: Phylogeny
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APA (6th Edition):
Hancock, L. P. (2018). Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae). (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792651/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hancock, Lillian Pine. “Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae).” 2018. Thesis, Brown University. Accessed February 18, 2020.
https://repository.library.brown.edu/studio/item/bdr:792651/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hancock, Lillian Pine. “Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae).” 2018. Web. 18 Feb 2020.
Vancouver:
Hancock LP. Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae). [Internet] [Thesis]. Brown University; 2018. [cited 2020 Feb 18].
Available from: https://repository.library.brown.edu/studio/item/bdr:792651/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hancock LP. Untangling the evolution of CAM photosynthesis within
Australian Calandrinia (Montiaceae). [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792651/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Georgia
2.
Kiselyova, Tatiana Gennadievna.
Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage.
Degree: PhD, Entomology, 2003, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/kiselyova_tatiana_g_200305_phd
► The results of an extensive investigation of larval morphology of Dermestidae (skin, larder, and carpet beetles) are presented and illustrated with over 150 original illustrations.…
(more)
▼ The results of an extensive investigation of larval morphology of Dermestidae (skin, larder, and carpet beetles) are presented and illustrated with over 150 original illustrations. The gastric caeca in Dermestes L., the structure of mandible base in Thylodriini Beal and Trinodini Beal, and the number of Malpighian tubules and abdominal nervous ganglia in various species of Dermestidae are reported for the first time. The first descriptions of the larvae of Cryptorhopalum triste LeConte, Anthrenocerus stigmacrophilus Armstrong, and Myrmeanthrenus frontalis Armstrong are presented. A parsimony analysis based on larval morphological data indicates the monophyly of Dermestidae exclusive of Orphilus Erichson. The phylogenetic position of Orphilus remains ambiguous. A provisional classification of Dermestidae based on larval data is proposed. The character evolution, the fossil record, and the distribution of extant Dermestidae are discussed in light of
phylogeny.
Advisors/Committee Members: Joseph V. McHugh.
Subjects/Keywords: Phylogeny
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APA (6th Edition):
Kiselyova, T. G. (2003). Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/kiselyova_tatiana_g_200305_phd
Chicago Manual of Style (16th Edition):
Kiselyova, Tatiana Gennadievna. “Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage.” 2003. Doctoral Dissertation, University of Georgia. Accessed February 18, 2020.
http://purl.galileo.usg.edu/uga_etd/kiselyova_tatiana_g_200305_phd.
MLA Handbook (7th Edition):
Kiselyova, Tatiana Gennadievna. “Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage.” 2003. Web. 18 Feb 2020.
Vancouver:
Kiselyova TG. Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage. [Internet] [Doctoral dissertation]. University of Georgia; 2003. [cited 2020 Feb 18].
Available from: http://purl.galileo.usg.edu/uga_etd/kiselyova_tatiana_g_200305_phd.
Council of Science Editors:
Kiselyova TG. Systematics of Dermestidae (Insecta: Coleoptera) based on the larval stage. [Doctoral Dissertation]. University of Georgia; 2003. Available from: http://purl.galileo.usg.edu/uga_etd/kiselyova_tatiana_g_200305_phd
University of Hong Kong
3.
Xue, Bine.
Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus.
Degree: PhD, 2013, University of Hong Kong
URL: Xue,
B.
[薛彬娥].
(2013).
Molecular
phylogenetics
of
Polyalthia
(Annonaceae)
:
identifying
clades
and
morphological
synapomorphies
in
a
large
polyphyletic
genus.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b4979931
;
http://dx.doi.org/10.5353/th_b4979931
;
http://hdl.handle.net/10722/181499
► The genus Polyalthiais one of the largest genera in the early-divergent angiosperm family Annonaceae, with ca. 155 currently accepted species. The genus has long been…
(more)
▼ The genus Polyalthiais one of the largest genera
in the early-divergent angiosperm family Annonaceae, with ca. 155
currently accepted species. The genus has long been recognised as a
morphologically heterogeneous assemblage lacking conspicuous
synapomorphies, and is one of the most significant impediments to
revisionary and floristic taxonomic research in the family. The
polyphyletic status of the genus has been confirmed in several
molecular phylogenetic studies, with several other genera
(Enicosanthum, Fenerivia, Haplostichanthus, Marsypopetalum, Monoon,
Trivalvariaand Woodiellantha)either closely related to or with
species formally assigned to Polyalthia.
This thesis presents
the most comprehensive molecular phylogenetic study of Polyalthiato
date, including 44Polyalthiaspecies and 16 species from putatively
related genera. The
phylogeny was reconstructed using maximum
parsimony (MP), maximum likelihood (ML) and Bayesian inference
(BI)methods, based on three chloroplast DNA regions (matK, rbcLand
trnL-F). The Polyalthia species are shown to segregate into four
clades: (I) a clade sister to Miliusa; (II) a clade that includes
four Polyalthia species and also Marsypopetalum pallidum, sister to
Trivalvaria; (III) a clade that also includes all Enicosanthum and
Woodiellantha species sampled, sister to Neo-uvaria; and (IV) a
clade that also includes all Haplostichanthus species sampled,
sister to Popowia. All four identified Polyalthia clades are
located in the tribe Miliuseae.
In order to assess the
relationships among different Polyalthia clades as well as the
relationships among all the genera in Miliuseae, a pilot study on
the phylogenetic utility of a wide range of markers was carried
out. Based on the result, eight chloroplast markers (matK, rbcL,
trnL-F, psbA-trnH, ndhF, ndhF-rpl32, rpl32-trnLand ycf1) were
selected and further sequenced for the clade representatives.
Although unsuccessful in resolving the Miliuseae, the recognition
of three of the four Polyalthia clades as monophyletic genera was
confirmed.
Diagnostic morphological and anatomical characters
were evaluated for clades II–IV, with the emphasis on putative
synapomorphies. The morphology of the species not sampled for
molecular study was examined in detail and compared against
diagnostic characters to determine correct taxonomic placement.
Based on the results, five Polyalthia species are transferred to
Marsypopetalum. The generic name Monoon is resurrected for the
clade that includes Enicosanthum and Woodiellantha, with the
transfer of 37 species from Polyalthia s.l., 18 species from
Enicosanthum and one Woodiellantha species. The generic name
Haplostichanthus is synonymised with Polyalthias.str., with the 11
Haplostichanthus species transferred to Polyalthias.str..
The
eight Polyalthia species reported from Fiji were further sampled in
a phylogenetic reconstruction based on three markers (matK, rbcLand
trnL-F). Three groups were identified, allied with Goniothalamus,
Polyalthia Clade I and Meiogyne respectively.
The flower of…
Advisors/Committee Members: Saunders, RMK.
Subjects/Keywords: Annonaceae - Phylogeny.
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APA ·
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Manager
APA (6th Edition):
Xue, B. (2013). Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus. (Doctoral Dissertation). University of Hong Kong. Retrieved from Xue, B. [薛彬娥]. (2013). Molecular phylogenetics of Polyalthia (Annonaceae) : identifying clades and morphological synapomorphies in a large polyphyletic genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4979931 ; http://dx.doi.org/10.5353/th_b4979931 ; http://hdl.handle.net/10722/181499
Chicago Manual of Style (16th Edition):
Xue, Bine. “Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus.” 2013. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Xue, B. [薛彬娥]. (2013). Molecular phylogenetics of Polyalthia (Annonaceae) : identifying clades and morphological synapomorphies in a large polyphyletic genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4979931 ; http://dx.doi.org/10.5353/th_b4979931 ; http://hdl.handle.net/10722/181499.
MLA Handbook (7th Edition):
Xue, Bine. “Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus.” 2013. Web. 18 Feb 2020.
Vancouver:
Xue B. Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus. [Internet] [Doctoral dissertation]. University of Hong Kong; 2013. [cited 2020 Feb 18].
Available from: Xue, B. [薛彬娥]. (2013). Molecular phylogenetics of Polyalthia (Annonaceae) : identifying clades and morphological synapomorphies in a large polyphyletic genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4979931 ; http://dx.doi.org/10.5353/th_b4979931 ; http://hdl.handle.net/10722/181499.
Council of Science Editors:
Xue B. Molecular phylogenetics of Polyalthia (Annonaceae):
identifying clades and morphological synapomorphies in alarge
polyphyletic genus. [Doctoral Dissertation]. University of Hong Kong; 2013. Available from: Xue, B. [薛彬娥]. (2013). Molecular phylogenetics of Polyalthia (Annonaceae) : identifying clades and morphological synapomorphies in a large polyphyletic genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4979931 ; http://dx.doi.org/10.5353/th_b4979931 ; http://hdl.handle.net/10722/181499
Oregon State University
4.
Willyard, Ann Nachreiner.
New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus).
Degree: PhD, Botany and Plant Pathology, 2007, Oregon State University
URL: http://hdl.handle.net/1957/5520
► A fossil-calibrated phylogenetic framework based on exemplars from each of the four taxonomic sections within Pinus was created using multiple nuclear and chloroplast loci. Calibration…
(more)
▼ A fossil-calibrated phylogenetic framework based on exemplars from each of the four taxonomic sections within Pinus was created using multiple nuclear and chloroplast loci. Calibration at the well-defined subgeneric split within Pinus with either fossil leaves and cones (ca. 45 million years ago) or fossil wood (ca. 85 million years ago) provides a reasonable starting point. Despite a wide difference in rates between loci, this work infers a moderate tempo of mutation rate in Pinus, and concludes that the within-locus rate variation and the leaves vs. wood question are both minor factors in comparison to the enormous effects of incorrect fossil/node association.
Next, I used full taxonomic sampling with multiple individuals per species and two nuclear loci to create independent phylogenies for 18 species in subsection Ponderosae (Section Trifoliae, subgenus Pinus). I estimate that some species have enormous effective population sizes (> 105 individuals). This factor and an inferred origin 15 million years ago contribute to the lack of species-level coalescence and the incongruence between Ponderosae gene trees. Pinus jeffreyi is allied with Sabinianae, as proposed from terpene biochemistry. I observed one instance where reticulate evolution is likely. Pinus coulteri accessions resolve with Sabinianae at one locus, but in a monophyletic clade sister to other Ponderosae at the other locus, suggesting that this species originated as a diploid hybrid. Similar incongruence between loci for accessions of the P. ponderosa/P. washoensis complex could also be the result of introgression.
Using this phylogenetic framework, I focused on three sympatric Ponderosae (P. washoensis, P. ponderosa, and P. jeffreyi) to evaluate the genetic distinctiveness and specific status of P. washoensis. Population-level sampling with faster-evolving nuclear microsatellite loci reveals a clear divergence between P. jeffreyi and the P. ponderosa/P. washoensis complex. Using allele frequencies, I observed a weak cluster of traditional P. washoensis with high-elevation putative P. washoensis populations from Oregon, but other methods show no differentiation between P. ponderosa and P. washoensis. Nuclear admixture and chloroplast haplotype analysis suggest a low level of introgression between P. jeffreyi and P. ponderosa/P. washoensis, providing an important source of migrants into the genetic milieu of these species.
Advisors/Committee Members: Liston, Aaron I. (advisor), Spatafora, Joseph (committee member).
Subjects/Keywords: phylogeny; Pine – Phylogeny
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APA ·
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APA (6th Edition):
Willyard, A. N. (2007). New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus). (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/5520
Chicago Manual of Style (16th Edition):
Willyard, Ann Nachreiner. “New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus).” 2007. Doctoral Dissertation, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/5520.
MLA Handbook (7th Edition):
Willyard, Ann Nachreiner. “New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus).” 2007. Web. 18 Feb 2020.
Vancouver:
Willyard AN. New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus). [Internet] [Doctoral dissertation]. Oregon State University; 2007. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/5520.
Council of Science Editors:
Willyard AN. New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus). [Doctoral Dissertation]. Oregon State University; 2007. Available from: http://hdl.handle.net/1957/5520
University of Johannesburg
5.
Naude, Paul.
Phylogenetic analysis of Vitaceae based on plastid sequence data.
Degree: 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/6288
► M.Sc.
Five plastid regions as source for phylogenetic information were used to investigate the relationships among ten genera of Vitaceae. These comprised the tmL intron,…
(more)
▼ M.Sc.
Five plastid regions as source for phylogenetic information were used to investigate the relationships among ten genera of Vitaceae. These comprised the tmL intron, trnL-F intergenic spacer, rpL16 intron, rbcL gene and accDpsa/ spacer. Congruent results were obtained between separate, combined and Bayesian analysis with all four major clades being shared among trees. All bootstrap consensus trees obtained from single sequences or combined analysis suggest that Vitaceae is a monophyletic group with Leea weakly supported as sister to Vitaceae. The results presented provide novel insights into the relationships within ten Vitaceae genera and suggest direction for further studies.
Subjects/Keywords: Plants - Phylogeny - Research.; Vitaceae - Phylogeny - Research.
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APA ·
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APA (6th Edition):
Naude, P. (2012). Phylogenetic analysis of Vitaceae based on plastid sequence data. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/6288
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Naude, Paul. “Phylogenetic analysis of Vitaceae based on plastid sequence data.” 2012. Thesis, University of Johannesburg. Accessed February 18, 2020.
http://hdl.handle.net/10210/6288.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Naude, Paul. “Phylogenetic analysis of Vitaceae based on plastid sequence data.” 2012. Web. 18 Feb 2020.
Vancouver:
Naude P. Phylogenetic analysis of Vitaceae based on plastid sequence data. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10210/6288.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Naude P. Phylogenetic analysis of Vitaceae based on plastid sequence data. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/6288
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Hong Kong
6.
于俊杰.; Yu, Junjie.
Phylogenetic tree reconstruction with protein
linkage.
Degree: M. Phil., 2012, University of Hong Kong
URL: Yu,
J.
[于俊杰].
(2012).
Phylogenetic
tree
reconstruction
with
protein
linkage.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b4961816
;
http://dx.doi.org/10.5353/th_b4961816
;
http://hdl.handle.net/10722/181488
► Phylogenetic tree reconstruction for a set of species is an important problem for understanding the evolutionary history of the species. Existing algorithms usually represent each…
(more)
▼ Phylogenetic tree reconstruction for a set of
species is an important problem for understanding the evolutionary
history of the species. Existing algorithms usually represent each
species as a binary string with each bit indicating whether a
particular gene/protein exists in the species. Given the topology
of a phylogenetic tree with each leaf representing a species (a
binary string of equal length) and each internal node representing
the hypothetical ancestor, the Fitch-Hartigan algorithm and the
Sankoff algorithm are two polynomial-time algorithms which assign
binary strings to internal nodes such that the total Hamming
distance between adjacent nodes in the tree is minimized. However,
these algorithms oversimplify the evolutionary process by
considering only the number of protein insertions/deletions
(Hamming distance) between two species and by assuming the
evolutionary history of each protein is independent.
Since the
function of a protein may depend on the existence of other
proteins, the evolutionary history of these functionally dependent
proteins should be similar, i.e. functionally dependent proteins
should usually be present (or absent) in a species at the same
time. Thus, in addition to the Hamming distance, the protein
linkage distance for some pairs/sets of proteins: whole block
linkage distance, partial block linkage distance, pairwise linkage
distance is introduced. It is proved that the phylogenetic tree
reconstruction problem to find the binary strings for the internal
nodes of a phylogenetic tree that minimizes the sum of the Hamming
distance and the linkage distance is NP-hard.
In this thesis, a
general algorithm to solve the phylogenetic tree reconstruction
with protein linkage problem which runs in O(4m⋅n) time for
whole/partial block linkage distance and O(4m⋅⋅ (m+n)) time for
pairwise linkage distance (compared to the straight-forward O(4m⋅
m⋅ n) or O(4m⋅ m2⋅⋅ n) time algorithm) is introduced where n is
the number of species and m is the length of the binary string
(number of proteins). It is further shown, by experiments, that our
algorithm using linkage information can construct more accurate
trees (better matches with the trees constructed by biologists)
than the algorithms using only Hamming distance.
publishedorfinalversion
Computer Science
Master
Master of Philosophy
Advisors/Committee Members: Chin, FYL.
Subjects/Keywords: Phylogeny.; Combinatorial analysis.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
于俊杰.; Yu, J. (2012). Phylogenetic tree reconstruction with protein
linkage. (Masters Thesis). University of Hong Kong. Retrieved from Yu, J. [于俊杰]. (2012). Phylogenetic tree reconstruction with protein linkage. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4961816 ; http://dx.doi.org/10.5353/th_b4961816 ; http://hdl.handle.net/10722/181488
Chicago Manual of Style (16th Edition):
于俊杰.; Yu, Junjie. “Phylogenetic tree reconstruction with protein
linkage.” 2012. Masters Thesis, University of Hong Kong. Accessed February 18, 2020.
Yu, J. [于俊杰]. (2012). Phylogenetic tree reconstruction with protein linkage. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4961816 ; http://dx.doi.org/10.5353/th_b4961816 ; http://hdl.handle.net/10722/181488.
MLA Handbook (7th Edition):
于俊杰.; Yu, Junjie. “Phylogenetic tree reconstruction with protein
linkage.” 2012. Web. 18 Feb 2020.
Vancouver:
于俊杰.; Yu J. Phylogenetic tree reconstruction with protein
linkage. [Internet] [Masters thesis]. University of Hong Kong; 2012. [cited 2020 Feb 18].
Available from: Yu, J. [于俊杰]. (2012). Phylogenetic tree reconstruction with protein linkage. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4961816 ; http://dx.doi.org/10.5353/th_b4961816 ; http://hdl.handle.net/10722/181488.
Council of Science Editors:
于俊杰.; Yu J. Phylogenetic tree reconstruction with protein
linkage. [Masters Thesis]. University of Hong Kong; 2012. Available from: Yu, J. [于俊杰]. (2012). Phylogenetic tree reconstruction with protein linkage. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4961816 ; http://dx.doi.org/10.5353/th_b4961816 ; http://hdl.handle.net/10722/181488
University of New Mexico
7.
Nearns, Eugenio Hernandaacute.
Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae).
Degree: UNM Biology Department, 2013, University of New Mexico
URL: https://digitalrepository.unm.edu/biol_etds/86
► The longhorned wood boring beetles (Insecta: Coleoptera: Cerambycidae) are a diverse and economically important group of insects. With an estimated 4,000 genera and more than…
(more)
▼ The longhorned wood boring beetles (Insecta: Coleoptera: Cerambycidae) are a diverse and economically important group of insects. With an estimated 4,000 genera and more than 35,000 described species, the Cerambycidae comprise one of the largest beetle families. Cerambycid beetles are found on all continents except Antarctica, from sea level to montane sites as high as 4000 m. Cerambycids are among the most serious wood boring pest species globally, affecting many agricultural crops, ornamental trees, and lumber products, causing millions of dollars in damage each year. Despite their economic importance and biological diversity, relatively little is known of cerambycid beetle ecology, behavior, or phylogenetic relationships. A better understanding of all of these factors would greatly contribute to conservation of endangered species, and in managing invasive species that could become pests in their new countries and habitats. In Chapter 1, I present the phylogenetic relationships among the tribes and genera of longhorned beetle subfamilies Prioninae Latreille and Parandrinae Blanchard (Coleoptera: Cerambycidae) inferred from DNA sequence data. Four genes (12S rRNA, 28S rRNA, cytochrome oxidase I, and histone III) were sequenced for 60 taxa representing the outgroup cerambycoid family Disteniidae Thomson and four cerambycid subfamilies: Cerambycinae Latreille, Lamiinae Latreille, Lepturinae Latreille, and Spondylidinae Audinet-Serville. The monophyly of Prioninae was tested using parsimony and Bayesian analyses. Prioninae (including Parandrinae and the cerambycine genus Plectogaster) was recovered as a monophyletic group in the Bayesian analysis. In the parsimony analysis, Prioninae (including Parandrinae but excluding two prionine genera: Aesa and Sarmydus) was also recovered as a monophyletic group. Both analyses recovered the subfamilies Lamiinae, Lepturinae, and Spondylidinae as monophyletic groups, as well as the Parandrinae + Prioninae clade as sister to Cerambycinae. Relationships among prionine tribes had low support values in both analyses, likely due to missing sequence data for a majority of included taxa, as well as relatively sparse taxonomic coverage (23 of 200 described genera, 11 of 18 tribes included). In Chapter 2, I present the first morphological study and phylogenetic analysis of the tribe Onciderini Thomson (Cerambycidae: Lamiinae). Members of this tribe are commonly referred to as the "twig girdlers" due to the peculiar behavior exhibited by adult females of at least four of 80 described genera. For the morphological study, specimens representing 74 of the 80 described genera of Onciderini were disarticulated and dissected. Twenty-three morphological characters were illustrated and studied, including the head, mandible, ligula, pronotum, prosternum, mesonotum, metendosternite, hind wing, and aedeagus. Seventy-four ingroup taxa and three outgroup taxa were scored for 23 morphological characters. Results of both the cladistic and Bayesian analyses suggest that Onciderini is…
Advisors/Committee Members: Miller, Kelly B., Branham, Marc A., Lowrey, Timothy K., Poe, Steven.
Subjects/Keywords: phylogeny; taxonomy; morphology
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APA (6th Edition):
Nearns, E. H. (2013). Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae). (Doctoral Dissertation). University of New Mexico. Retrieved from https://digitalrepository.unm.edu/biol_etds/86
Chicago Manual of Style (16th Edition):
Nearns, Eugenio Hernandaacute. “Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae).” 2013. Doctoral Dissertation, University of New Mexico. Accessed February 18, 2020.
https://digitalrepository.unm.edu/biol_etds/86.
MLA Handbook (7th Edition):
Nearns, Eugenio Hernandaacute. “Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae).” 2013. Web. 18 Feb 2020.
Vancouver:
Nearns EH. Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae). [Internet] [Doctoral dissertation]. University of New Mexico; 2013. [cited 2020 Feb 18].
Available from: https://digitalrepository.unm.edu/biol_etds/86.
Council of Science Editors:
Nearns EH. Systematics of Longhorned Beetles (Insecta: Coleoptera: Cerambycidae). [Doctoral Dissertation]. University of New Mexico; 2013. Available from: https://digitalrepository.unm.edu/biol_etds/86
University of Victoria
8.
Schulze, Anja.
Phylogeny of vestimentiferan tube worms.
Degree: Department of Biology, 2018, University of Victoria
URL: https://dspace.library.uvic.ca//handle/1828/9105
► Vestimentifera inhabit hydrothermal vents, cold-water seeps and other marine reducing habitats. The objectives of this study were to analyse phylogenetic relationships among the extant species…
(more)
▼ Vestimentifera inhabit hydrothermal vents, cold-water seeps and other marine reducing habitats. The objectives of this study were to analyse phylogenetic relationships among the extant species and their affinities to perviate and moniliferan Pogonophora and Polychaeta. The
phylogeny was reconstructed using morphological characters to test phylogenetic hypotheses based on molecular data. Morphological characters were partly extracted from the literature and partly gained throughout study of gross morphological and anatomical investigations and light, transmission and scanning electron microscopy. Three aspects of morphology were examined in detail in nine vestimentiferan species. The excretory system differs among the vestimentiferan species in the number of excretory pores, absence/presence of excretory papillae and grooves and shape of the excretory ducts. The anatomy of the excretory system resembles that shared by the polychaete families Serpulidae, Sabellidae and Sabellariidae. Chaetal ultrastructure and chaetogenesis show patterns similar to uncini in polychaetes. Contrary to published accounts, the septa dividing the opisthosomal segments only bear musculature on their posterior faces. A rudimentary gut and anus are present in opisthosomes of specimens up to adult size. The blood vascular system includes an intravasal body in the dorsal vessel with ultrastructural characteristics similar to intravasal tissue in Terebellidae, Ampharetidae, Flabelligeridae and Serpulidae, and is probably involved in hemoglobin production. Hemocytes were detected in many blood vessels, most of them attached to the vascular lamina. The sinus valvatus is a specialised region of the anterior ventral vessel, apparently unique to vestimentiferans. The wall of the dorsal vessel is formed by myoepithelial cells, representing a coelomyarian type of double obliquely striated musculature. Phylogenetic analyses including a total of 17 vestimentiferan species and three perviate species as outgroups support molecular interpretations that the vestimentiferan species inhabiting basalt-hosted vents of the Eastern Pacific represent a derived monophyletic clade. According to the reconstructed
phylogeny, the ancestral habitat of Vestimentifera was deep-water sedimented vent sites in the Western Pacific. Analysis of the relationships among Pogonophora and six polychaete families placed Pogonophora at the base of a clade including Sabellidae, Serpulidae and Sabellariidae. The Oweniidae represent the sister group to this clade.
Advisors/Committee Members: Tunnicliffe, Verena Julia (supervisor).
Subjects/Keywords: Phylogeny; Tube worms
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APA (6th Edition):
Schulze, A. (2018). Phylogeny of vestimentiferan tube worms. (Thesis). University of Victoria. Retrieved from https://dspace.library.uvic.ca//handle/1828/9105
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Schulze, Anja. “Phylogeny of vestimentiferan tube worms.” 2018. Thesis, University of Victoria. Accessed February 18, 2020.
https://dspace.library.uvic.ca//handle/1828/9105.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Schulze, Anja. “Phylogeny of vestimentiferan tube worms.” 2018. Web. 18 Feb 2020.
Vancouver:
Schulze A. Phylogeny of vestimentiferan tube worms. [Internet] [Thesis]. University of Victoria; 2018. [cited 2020 Feb 18].
Available from: https://dspace.library.uvic.ca//handle/1828/9105.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Schulze A. Phylogeny of vestimentiferan tube worms. [Thesis]. University of Victoria; 2018. Available from: https://dspace.library.uvic.ca//handle/1828/9105
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Wisconsin – La Cross
9.
Foltz, Matthew J.
Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin.
Degree: 2011, University of Wisconsin – La Cross
URL: http://digital.library.wisc.edu/1793/68870
► Three new species, Cantharellus phasmatis, Cantharellus flavus, and Cantharellus spectaculus, previously considered Cantharellus cibarius are described in this study. Morphological differences between these new species…
(more)
▼ Three new species, Cantharellus phasmatis, Cantharellus flavus, and Cantharellus spectaculus, previously considered Cantharellus cibarius are described in this study. Morphological differences between these new species and their distinction from other Cantharellus species were supported by molecular data from at least two of the three loci included in our analysis (nLSU, ITS, & TEF1). Cantharellus phasmatis and C. flavus are shown to share a most recent common ancestor with the recently described species from the southern United States, Cantharellus tenuithrix, while C. spectaculus is in a much more distantly related clade. In addition, we elevate Cantharellus cibarius var. roseocanus to the species level based on molecular data that suggest its range extends across North America.
Advisors/Committee Members: Volk, Thomas.
Subjects/Keywords: Phylogeny.; Molecular biology.
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APA (6th Edition):
Foltz, M. J. (2011). Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin. (Thesis). University of Wisconsin – La Cross. Retrieved from http://digital.library.wisc.edu/1793/68870
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Foltz, Matthew J. “Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin.” 2011. Thesis, University of Wisconsin – La Cross. Accessed February 18, 2020.
http://digital.library.wisc.edu/1793/68870.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Foltz, Matthew J. “Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin.” 2011. Web. 18 Feb 2020.
Vancouver:
Foltz MJ. Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin. [Internet] [Thesis]. University of Wisconsin – La Cross; 2011. [cited 2020 Feb 18].
Available from: http://digital.library.wisc.edu/1793/68870.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Foltz MJ. Systematics and molecular phylogeny of Cantharellus spp. in western Wisconsin. [Thesis]. University of Wisconsin – La Cross; 2011. Available from: http://digital.library.wisc.edu/1793/68870
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Columbia University
10.
Glenwinkel, Lori Ann.
In silico prediction of regulators of neuronal identity through phylogenetic footprinting.
Degree: 2018, Columbia University
URL: https://doi.org/10.7916/D8ZW33SC
► How individual neurons in a nervous system give rise to complex function, behavior and consciousness in higher animals has been studied for over a century,…
(more)
▼ How individual neurons in a nervous system give rise to complex function, behavior and consciousness in higher animals has been studied for over a century, yet scientist have only begun to understand how brains work at the molecular level. This level of study is made possible through technological advances, especially transgenic analysis of the cells that make up nervous systems. To date, no other system has been used as extensively as the nematode Caenorhabditis elegans in this pursuit. With just 302 neurons in the adult hermaphrodite, extensive neuronal maps at the anatomical, functional, and molecular level have been built over the past 30 years. One way to understand how nervous systems develop and differentiate into diverse cell types such as sensory or motor neurons that make higher level behaviors possible, is to unravel the underlying gene regulatory programs that control development.
Throughout my PhD I investigated neuron type identity regulators to understand how nervous system diversity is generated and maintained using several bioinformatic approaches. First, I developed a software program and community resource tool, TargetOrtho, useful for identifying novel regulatory targets of transcription factors such as the cell type selector proteins termed terminal selectors evidenced to control terminal cell identity of 74 of the 118 neuron types in C. elegans. Analysis of terminal selector candidate target genes led to the further discovery that predicted target genes with cis-regulatory binding sites are enriched for neuron type specific genes suggesting an overarching theme of direct regulation by terminal selectors to specify cell type. Using this knowledge, I make predictions for novel regulators of neuronal identity to further elucidate how the C. elegans nervous system diversifies into 118 neuron types.
Subjects/Keywords: Biometry; Phylogeny; Neurons
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APA (6th Edition):
Glenwinkel, L. A. (2018). In silico prediction of regulators of neuronal identity through phylogenetic footprinting. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D8ZW33SC
Chicago Manual of Style (16th Edition):
Glenwinkel, Lori Ann. “In silico prediction of regulators of neuronal identity through phylogenetic footprinting.” 2018. Doctoral Dissertation, Columbia University. Accessed February 18, 2020.
https://doi.org/10.7916/D8ZW33SC.
MLA Handbook (7th Edition):
Glenwinkel, Lori Ann. “In silico prediction of regulators of neuronal identity through phylogenetic footprinting.” 2018. Web. 18 Feb 2020.
Vancouver:
Glenwinkel LA. In silico prediction of regulators of neuronal identity through phylogenetic footprinting. [Internet] [Doctoral dissertation]. Columbia University; 2018. [cited 2020 Feb 18].
Available from: https://doi.org/10.7916/D8ZW33SC.
Council of Science Editors:
Glenwinkel LA. In silico prediction of regulators of neuronal identity through phylogenetic footprinting. [Doctoral Dissertation]. Columbia University; 2018. Available from: https://doi.org/10.7916/D8ZW33SC
Victoria University of Wellington
11.
Martin, Peter.
Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae).
Degree: 2011, Victoria University of Wellington
URL: http://hdl.handle.net/10063/1665
► The brown algal genus Lessonia is distributed in the Southern Hemisphere where it can form dominant kelp beds on the exposed rocky shores of New…
(more)
▼ The brown algal genus Lessonia is distributed in the Southern Hemisphere where it can form dominant kelp beds on the exposed rocky shores of New Zealand, South America and Tasmania. Its disjunct distribution within the West Wind Drift contrasts with the view that it is a poor disperser. Apart from studies in Chile, where it is an economically important genus, little is known about Lessonia and in some areas even the number of species is unknown. Using different genetic markers I examined the
phylogeny, phylogeography, and the connectivity of populations in Lessonia. Using the literature, species affiliations and nomenclatural problems have been investigated. Combining the sequences of three mitochondrial, one chloroplast and two nuclear markers, a supermatrix approach was used to investigate the phylogenetic relationship and the timing of speciation for all known Lessonia species. The Australasian Lessonia species form a clade within a paraphyletic grouping of South American species. Radiation in Lessonia occurred about 5 Mya at the beginning of the Pliocene and rapid radiation took place in Australasia 3.5 Mya. The data also revealed cryptic species within a L. variegata species complex. Further analysis within the Australasian clade, using mitochondrial (atp8-sp) and chloroplast (rbc-sp) markers and wider sampling (469 individuals from 57 sample sites) supported four cryptic species and revealed localized distribution for all Australasian lineages. Genetic breaks between Lessonia lineages corresponded well to known biogeographic regions and could be correlated to the geographic structure of New Zealand at the end of the Pliocene. The Cook Strait region was analysed more closely with newly developed microsatellite markers to test the influence of geographic breaks (Cook Strait and Palliser Bay) on the connectivity of populations.
The results suggested that connectivity depends on the width of unsuitable habitat, and within inner Cook Strait it is facilitated by sometimes strong tidal flows that create turbulences and unique current patterns. The results implied that rafting is an important mean of dispersal. The study of the early literature on Lessonia supported the new lectotypification of L. flavicans but revealed that L. frutescens and possibly L. ovata (supported by images of rediscovered herbarium material) are synonymous to L. searlesiana and as the older epithets they should have priority. Suggestions have been made for the lectotypification of L. fuscescens and L. ovata. In general Lessonia shows non-overlapping distribution in Australasia but overlapping distribution in South America. Despite being a poor disperser, indicated by fine scale genetic structure, Lessonia is also able to connect populations over wide areas of unsuitable habitats.
Advisors/Committee Members: Zuccarello, Joe.
Subjects/Keywords: Lessonia; Phylogeny; Phylogeography
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APA ·
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APA (6th Edition):
Martin, P. (2011). Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae). (Doctoral Dissertation). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/1665
Chicago Manual of Style (16th Edition):
Martin, Peter. “Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae).” 2011. Doctoral Dissertation, Victoria University of Wellington. Accessed February 18, 2020.
http://hdl.handle.net/10063/1665.
MLA Handbook (7th Edition):
Martin, Peter. “Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae).” 2011. Web. 18 Feb 2020.
Vancouver:
Martin P. Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae). [Internet] [Doctoral dissertation]. Victoria University of Wellington; 2011. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10063/1665.
Council of Science Editors:
Martin P. Phylogeny, Phylogeography and Population Connectivity of Lessonia (Phaeophyceae). [Doctoral Dissertation]. Victoria University of Wellington; 2011. Available from: http://hdl.handle.net/10063/1665
Dalhousie University
12.
Liu, Chaoyue.
GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY.
Degree: MS, Department of Mathematics & Statistics - Statistics
Division, 2016, Dalhousie University
URL: http://hdl.handle.net/10222/71495
► As the number of sequenced genomes increases rapidly, new approaches are needed for the computational annotation of protein functions and to better understand the ecological…
(more)
▼ As the number of sequenced genomes increases rapidly,
new approaches are needed for the computational annotation of
protein functions and to better understand the ecological roles of
genomes.
In this thesis, a gene clustering approach based on the
correlated evolution method (Pagel) and hierarchical clustering is
proposed to find sets of co-occurring genes according to their
weighted phylogenetic profiles. Hierarchical clusters can be cut at
many different levels of similarity; since our primary interest is
the evaluation of functional associations, we used the semantic
similarity of Gene Ontology terms to optimize the choice of cuts in
the hierarchy, and to evaluate our clustering outcomes. The results
can be used to predict the functions of the unannotated genes and
to discover candidate sets of lateral gene transfer events.
We
applied this approach to the gene set of the large clostridial
genome “Lachnospiraceae bacterium 3-1-57FAA-CT1”, and generated
informative clusters of genes with correlated evolutionary
histories, which in many cases shared functional similarity as
well. We compared the results of our method to the recently
described approach, Clustering by Inferred Modules of Evolution
(CLIME), and found considerable similarity between the two sets of
predictions. However, our hierarchical clustering approach allows
the exploration of degrees of protein similarity, and the
generation of smaller or larger clusters as appropriate. In both
cases, we found strong evidence that clusters of genes having
similar phylogenetic histories also tend to be functionally
linked.
Advisors/Committee Members: Department of Mathematics & Statistics - Statistics Division (department), Master of Science (degree), n/a (external-examiner), Joanna Mills-Flemming (graduate-coordinator), Joseph Bielawski (thesis-reader), Tobias Kenney (thesis-reader), Hong Gu (thesis-supervisor), Robert Beiko (thesis-supervisor), Not Applicable (ethics-approval), Not Applicable (manuscripts), Yes (copyright-release).
Subjects/Keywords: phylogeny; Gene clustering; statistics
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Export
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APA (6th Edition):
Liu, C. (2016). GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/71495
Chicago Manual of Style (16th Edition):
Liu, Chaoyue. “GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY.” 2016. Masters Thesis, Dalhousie University. Accessed February 18, 2020.
http://hdl.handle.net/10222/71495.
MLA Handbook (7th Edition):
Liu, Chaoyue. “GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY.” 2016. Web. 18 Feb 2020.
Vancouver:
Liu C. GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY. [Internet] [Masters thesis]. Dalhousie University; 2016. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10222/71495.
Council of Science Editors:
Liu C. GENE CLUSTERING BASED ON CO-OCCURRENCE WITH CORRECTION FOR
COMMON EVOLUTIONARY HISTORY. [Masters Thesis]. Dalhousie University; 2016. Available from: http://hdl.handle.net/10222/71495
13.
Helvin, Vincent.
Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments.
Degree: 2014, Cochin University of Science and Technology
URL: http://dyuthi.cusat.ac.in/purl/4962
► Soil community genomics or metagenomics is employed in this study to analyze the evolutionary related - ness of mangrove microbial community. The metagenomic DNA was…
(more)
▼ Soil community genomics or metagenomics is employed in this study to analyze the evolutionary related
-
ness of mangrove microbial community. The metagenomic DNA was isolated from mangrove sediment and
16SrDNA was amplified using universal primers. The amplicons were ligated into pTZ57R/T cloning vector and transformed
onto E. coli JM109 host cells. The recombinant plasmids were isolated from positive clones and the insert was confirmed
by its reamplification. The amplicons were subjected to Amplified Ribosomal DNA Restriction Analysis (ARDRA) using three
different tetra cutter restriction enzymes namely Sau3A1, Hha1 and HpaII. The 16SrDNA insert were sequenced and their
identity was determined. The sequences were submitted to NCBI database and accession numbers obtained. The phylo
-
genetic tree was constructed based on Neighbor-Joining technique. Clones belonged to two major phyla of the bacterial
domain, namely Firmicutes and Proteobacteria, with members of Firmicutes predominating. The microbial diversity of the
mangrove sediment was explored in this manner.
Cochin University of Science & Technology
Subjects/Keywords: Metagenomics; 16Sr DNA; ARDRA; Phylogeny
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APA (6th Edition):
Helvin, V. (2014). Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/4962
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Helvin, Vincent. “Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments.” 2014. Thesis, Cochin University of Science and Technology. Accessed February 18, 2020.
http://dyuthi.cusat.ac.in/purl/4962.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Helvin, Vincent. “Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments.” 2014. Web. 18 Feb 2020.
Vancouver:
Helvin V. Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments. [Internet] [Thesis]. Cochin University of Science and Technology; 2014. [cited 2020 Feb 18].
Available from: http://dyuthi.cusat.ac.in/purl/4962.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Helvin V. Characterization and applications of two protease enzymes obtained by culture dependent and independent approaches from mangrove sediments. [Thesis]. Cochin University of Science and Technology; 2014. Available from: http://dyuthi.cusat.ac.in/purl/4962
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Utah
14.
Lively, Joshua Ryan.
New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography.
Degree: MS, Geology & Geophysics, 2013, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3474/rec/1683
► Recent discoveries demonstrate that Campanian dinosaur assemblages across the western North American subcontinent (Laramidia) exhibit basin-scale endemism, with each sedimentary basin possessing its own unique…
(more)
▼ Recent discoveries demonstrate that Campanian dinosaur assemblages across the western North American subcontinent (Laramidia) exhibit basin-scale endemism, with each sedimentary basin possessing its own unique assemblage, and an apparent higher-level biogeographic boundary between northern and southern Laramidia. Subsequently, during the Maastrichtian, most taxa are present in multiple basins, with some forms supporting the presence of distinct northern/southern provinces, whereas others are more cosmopolitan. Despite these dinosaur biogeographic data, little attention has been paid to other vertebrate groups. To test these biogeographic hypotheses, I examined the alpha taxonomy, evolution, and paleobiogeography of the paracryptodiran turtle clade Baenidae using a newly-generated species-level phylogeny. Baenids were one of the most diverse and abundant turtle clades during the Late Cretaceous, are restricted to North America, and have a well-sampled fossil record, making them an ideal study system for examining Laramidian biogeography.I first assessed the taxonomic affinities of newly discovered baenid turtles from the Upper Cretaceous (Campanian) Kaiparowits Formation of southern Utah. I found that at least five distinct baenid species inhabited the Kaiparowits Basin during the Campanian. These taxa include Denazinemys nodosa, previously known from Texas and New Mexico, Boremys grandis, previously known from New Mexico only, and three newivtaxa that appear to have been endemic to southern Utah. These newly described taxa include two new species of Neurankylus and a morphologically unique pig-nosed taxon. Using new morphologic data from the Kaiparowits specimens, I conducted a comprehensive phylogenetic analysis on the clade, utilizing 106 characters and 32 ingroup taxa.Based on occurrences alone, Campanian baenid assemblages display distinct northern and southern provinces with no taxonomic overlap. To investigate the evolutionary patterns of this biogeographic signal, I applied a dispersal-extinction-cladogenesis model to the strict consensus tree and three randomly selected most parsimonious trees from my phylogenetic analysis. This study reveals that the ancestral ranges for basal baenid branches were cosmopolitan across either Laramidia or all of North America. More derived baenids (i.e., subclade Baenodda) possessed ancestral ranges in the area of Montana, Wyoming, and the Dakotas, and the analysis reconstructs multiple individual lineages then dispersing to southern Laramidia and Alberta.
Subjects/Keywords: Baenidae; Cretaceous; Paleobiogeography; Phylogeny
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Manager
APA (6th Edition):
Lively, J. R. (2013). New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3474/rec/1683
Chicago Manual of Style (16th Edition):
Lively, Joshua Ryan. “New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography.” 2013. Masters Thesis, University of Utah. Accessed February 18, 2020.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3474/rec/1683.
MLA Handbook (7th Edition):
Lively, Joshua Ryan. “New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography.” 2013. Web. 18 Feb 2020.
Vancouver:
Lively JR. New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography. [Internet] [Masters thesis]. University of Utah; 2013. [cited 2020 Feb 18].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3474/rec/1683.
Council of Science Editors:
Lively JR. New Baenid turtles from the cretaceous Kaiparowits formation of Southern Utah: implications for Laramidian biogeography. [Masters Thesis]. University of Utah; 2013. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3474/rec/1683
Texas A&M University
15.
Correa, Julian Eduardo.
Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages.
Degree: 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/155564
► The cordaiteans were a group of Carboniferous and Permian woody plants, which thrived in wetlands and thrived in wetlands and terra firma habitats. Cordaitean cones…
(more)
▼ The cordaiteans were a group of Carboniferous and Permian woody plants, which thrived in wetlands and thrived in wetlands and terra firma habitats. Cordaitean cones from wetland habitats are exquisitely well preserved and contain a suit of characters that make their fossils prime candidates for cladistic analysis; historically, there are more male cones than female cone. Cordaitean morphological characteristics make this clade a possible precursor lineage of modern conifer and gnetalean lineages. However, the exact relation between fossil seed-plant clades and modern gymnosperm groups remains enigmatic. The resent discovery of a bisexual cordaitean cone calls into question the relationship between cordaiteans, gnetaleans and angiosperms. This study performs three cladistics analyses in order to find the relations of taxa within the cordaitean clade and other early plant lineages using primarily PAUP* and TNT. An analysis of male only cones provides a phylogram for the relations between the corditean taxa; the results also suggest a bisexual ancestry for the clade. A second analysis attempted to introduce the morphologically distinct female cones; the results produce a similar strict consensus tree. However, many of the female cones do not pair with their associated male cones indentified in ?whole-plant? reconstructions of cordaitean lineages. Instead, female cones formed separate linages. A final analysis incorporated other plant lineages and assigned traits associated with seeds and pollen to both male and female cones. The results support an early bisexual ancestry to the cordaiteans, and suggests that the cordaiteans are a polyphylecit clade, which gave rise to the voltzialean-conifer lineage. Including more fossil taxa lineages may prove useful, as well as establishing other criteria to compare characters to taxa in cladistics analysis.
Advisors/Committee Members: Raymond, Anne (advisor), Woolley, James (committee member), Olszewski, Thomas D (committee member).
Subjects/Keywords: Cordaitean Plant Evolution Phylogeny Carboniferous
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APA (6th Edition):
Correa, J. E. (2015). Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155564
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Correa, Julian Eduardo. “Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages.” 2015. Thesis, Texas A&M University. Accessed February 18, 2020.
http://hdl.handle.net/1969.1/155564.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Correa, Julian Eduardo. “Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages.” 2015. Web. 18 Feb 2020.
Vancouver:
Correa JE. Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages. [Internet] [Thesis]. Texas A&M University; 2015. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1969.1/155564.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Correa JE. Morphological Cladistic Analysis of the Cordaitean Cones and Implications for Plant Lineages. [Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155564
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Victoria University of Wellington
16.
Scott, Surrey Lisa.
Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe.
Degree: 2010, Victoria University of Wellington
URL: http://hdl.handle.net/10063/1885
► The New Zealand coastline and marine environment is a diverse place and presents plenty of dispersal obstacles to many of the organisms that live there.…
(more)
▼ The New Zealand coastline and marine environment is a diverse place and presents
plenty of dispersal obstacles to many of the organisms that live there. This thesis
investigates the phylogeography of one of the most common fish species around the
coast of New Zealand, the endemic wrasse Notolabrus celidotus, using the
mitochondrial DNA control region and compares genetic variability to another common
New Zealand wrasse, Notolabrus fucicola in a local setting. These species are part of a
tribe of temperate fish, the pseudolabrines, which can be found throughout the South
and North-West Pacific. The
phylogeny of this tribe was also analysed using the
mitochondrial 16S gene to investigate the relationships among the New Zealand
pseudolabrines and to those species elsewhere. The results suggest that pseudolabrines
from mainland New Zealand are closely related and are likely to have originated from
southern Australia while species from the Kermadec Islands and other northern islands
are more closely related to the species of eastern Australia. The Notolabrus and
Pseudolabrus genera should be reviewed to remedy paraphyly of Pseudolabrus.
Furthermore, N. celidotus shows no population structuring throughout its range and
appears to be rapidly expanding. Genetic variability was similar for both N. celidotus
and N. fucicola. The results suggest that the pseudolabrine tribe has made multiple
migrations to New Zealand where Notolabrus celidotus was able to spread around the
three main islands and, likely facilitated by a long planktonic larval duration, was able
to maintain high gene flow among populations.
Advisors/Committee Members: Ritchie, Peter.
Subjects/Keywords: Phylogeography; Notolabrus celidotus; Phylogeny
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APA ·
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MLA ·
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CSE |
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to Zotero / EndNote / Reference
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APA (6th Edition):
Scott, S. L. (2010). Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/1885
Chicago Manual of Style (16th Edition):
Scott, Surrey Lisa. “Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe.” 2010. Masters Thesis, Victoria University of Wellington. Accessed February 18, 2020.
http://hdl.handle.net/10063/1885.
MLA Handbook (7th Edition):
Scott, Surrey Lisa. “Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe.” 2010. Web. 18 Feb 2020.
Vancouver:
Scott SL. Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe. [Internet] [Masters thesis]. Victoria University of Wellington; 2010. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10063/1885.
Council of Science Editors:
Scott SL. Phylogeography of the Common New Zealand Wrasse Species, Notolabrus Celidotus, and the Phylogenetics of the Pseudolabrine Tribe. [Masters Thesis]. Victoria University of Wellington; 2010. Available from: http://hdl.handle.net/10063/1885
Oregon State University
17.
Creason, Allison L.
Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus.
Degree: PhD, Molecular and Cellular Biology, 2015, Oregon State University
URL: http://hdl.handle.net/1957/55812
► Plant pathogenic Rhodococcus species are persistent pathogens able to cause severe growth deformities on a large range of hosts. The most well studied species, R.…
(more)
▼ Plant pathogenic Rhodococcus species are persistent pathogens able to
cause severe growth deformities on a large range of hosts. The most well studied
species, R. fascians is predicted by current models to synthesize a mixture of
cytokinins that act to directly perturb the hosts' hormone balances, which results
in abnormal growth. The biosynthesis and modification of cytokinins has been
attributed to proteins encoded by the fas locus. The fasD gene encodes an
isopentenyl transferase, a key enzyme in cytokinin biosynthesis, and is
necessary for pathogenicity. In addition to fasD, fasA, putatively encoding a P450
monooxygenase, and fasF, encoding a phosphoribohydrolase, are hypothesized
to be necessary for pathogenicity. The work presented in this thesis employs the
use of whole genome sequences from over 20 isolates of Rhodococcus to
challenge the current virulence model and develop new models. Counter to the
current virulence model, our data shows R. fascians produces only one active
cytokinin in a fas-dependent manner. Analysis of the genome sequences
revealed a unique pathogenic isolate that lacks the fas operon. However, this
isolate contains a gene predicted to encode a protein with isopentenyl
transferase and phosphoribohydrolase domains, putatively capable of catalyzing
and activating cytokinins, respectively. We also developed methods to generate
non-polar gene deletion mutants of fasA and fasF, two key genes in the extant
virulence model. Characterization of these mutants indicates fasA and fasF are
not necessary for pathogenicity. Finally, we used the genome sequences from 59
Rhodococcus isolates, including the 21 genomes we sequenced, to provide a
framework for resolving the Rhodococcus genus.
Advisors/Committee Members: Chang, Jeff H. (advisor), Freitag, Michael (committee member).
Subjects/Keywords: Rhodococcus – Phylogeny – Molecular aspects
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Creason, A. L. (2015). Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/55812
Chicago Manual of Style (16th Edition):
Creason, Allison L. “Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus.” 2015. Doctoral Dissertation, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/55812.
MLA Handbook (7th Edition):
Creason, Allison L. “Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus.” 2015. Web. 18 Feb 2020.
Vancouver:
Creason AL. Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus. [Internet] [Doctoral dissertation]. Oregon State University; 2015. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/55812.
Council of Science Editors:
Creason AL. Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus. [Doctoral Dissertation]. Oregon State University; 2015. Available from: http://hdl.handle.net/1957/55812
Oregon State University
18.
Sung, Gi-Ho.
Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation.
Degree: PhD, Botany and Plant Pathology, 2005, Oregon State University
URL: http://hdl.handle.net/1957/29767
Subjects/Keywords: Cordyceps – Phylogeny
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sung, G. (2005). Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/29767
Chicago Manual of Style (16th Edition):
Sung, Gi-Ho. “Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation.” 2005. Doctoral Dissertation, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/29767.
MLA Handbook (7th Edition):
Sung, Gi-Ho. “Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation.” 2005. Web. 18 Feb 2020.
Vancouver:
Sung G. Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation. [Internet] [Doctoral dissertation]. Oregon State University; 2005. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/29767.
Council of Science Editors:
Sung G. Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation. [Doctoral Dissertation]. Oregon State University; 2005. Available from: http://hdl.handle.net/1957/29767
University of Hong Kong
19.
Li, Pui-sze.
Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography.
Degree: PhD, 2015, University of Hong Kong
URL: Li,
P.
[李佩思].
(2015).
Systematics
and
phylogenetics
of
disepalum
(annonaceae)
:
morphological
diversification,
pollination
ecology
and
historical
biogeography.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b5576758
;
http://dx.doi.org/10.5353/th_b5576758
;
http://hdl.handle.net/10722/231096
► Although Disepalum (Annonaceae subfam. Annonoideae tribe Annoneae) has a narrow taxonomic diversity with only nine extant species, it exhibits a striking diversity in other perspectives:…
(more)
▼ Although Disepalum (Annonaceae subfam. Annonoideae
tribe Annoneae) has a narrow taxonomic diversity with only nine
extant species, it exhibits a striking diversity in other
perspectives: Disepalum s.str. consists of six species with a calyx
of two sepals and a fused corolla, and is confined to tropical
lowland forests in western Malesia; whereas three species with
typical trimerous floral structure have been classified in genus
Enicosanthellum, which generally occurs in montane forests in
continental Asia.
The first species-level molecular phylogeny
with extensive sampling of Disepalum species and related taxa was
reconstructed in the present study using maximum parsimony (MP),
maximum likelihood (ML) and Bayesian inference (BI) methods, based
upon cpDNA (matK, trnL-F, ndhF and ycf1) and nDNA (AP3 and PhyA)
regions. The resultant phylogeny is well resolved, confirming the
monophyletic status of Disepalum s.l. and clarifying the sister
relationship between Disepalum s.str. and Enicosanthellum clades.
Since the topology is consistent with both taxonomic delimitations
(broader delimitation of Disepalum s.l. and narrower
circumscription following segregation of Enicosanthellum),
morphological character mapping was conducted using parsimony and
likelihood approaches to identify synapomorphies and diagnostic
characters. Lack of morphological synapomorphies for
Enicosanthellum provides a cogent argument against its recognition
as a distinct genus, supporting the broader generic delimitation of
Disepalum with development of pollen octads and carpophores as
synapomorphies. As Enicosanthellum is clearly separated from
Disepalum s.str. in several diagnostic characters, the two clades
are recognized as distinct subgenera.
The functional
significance of selected floral, pollen and fruit characters was
evaluated. Evolutionary loss of floral chamber in subgen. Disepalum
in relation to compression of two petal whorls into one and fusion
of contiguous petals was confirmed to be associated with a shift in
pollination system. Comparative field studies on pollination
ecology revealed a shift from a generalist pollination (including
small beetles and fruit flies) in subgen. Enicosanthellum (D.
pulchrum) to more specific bee pollination in subgen. Disepalum (D.
anomalum), indicating that loss of floral chamber and partial
breakdown of protogyny may have promoted the shift. The formation
of pollen octads and increased number of carpels in Disepalum may
be selectively advantageous when pollinator visits are infrequent,
although this would require an extragynoecial compitum for
intercarpellary pollen tube growth. Independent evolutionary
origins of carpophores in the Annoneae were furthermore inferred,
suggesting either carpophores or monocarp stipes have evolved to
facilitate exposure of monocarps to frugivores.
Molecular dating
using an uncorrelated relaxed molecular clock (UCLD) model and two
fossil calibrations, ancestral range estimation, and ecological
niche modelling across evolutionary time were performed. The
results…
Subjects/Keywords: Annonaceae - Phylogeny; Annonaceae - Classification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, P. (2015). Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography. (Doctoral Dissertation). University of Hong Kong. Retrieved from Li, P. [李佩思]. (2015). Systematics and phylogenetics of disepalum (annonaceae) : morphological diversification, pollination ecology and historical biogeography. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5576758 ; http://dx.doi.org/10.5353/th_b5576758 ; http://hdl.handle.net/10722/231096
Chicago Manual of Style (16th Edition):
Li, Pui-sze. “Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography.” 2015. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Li, P. [李佩思]. (2015). Systematics and phylogenetics of disepalum (annonaceae) : morphological diversification, pollination ecology and historical biogeography. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5576758 ; http://dx.doi.org/10.5353/th_b5576758 ; http://hdl.handle.net/10722/231096.
MLA Handbook (7th Edition):
Li, Pui-sze. “Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography.” 2015. Web. 18 Feb 2020.
Vancouver:
Li P. Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography. [Internet] [Doctoral dissertation]. University of Hong Kong; 2015. [cited 2020 Feb 18].
Available from: Li, P. [李佩思]. (2015). Systematics and phylogenetics of disepalum (annonaceae) : morphological diversification, pollination ecology and historical biogeography. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5576758 ; http://dx.doi.org/10.5353/th_b5576758 ; http://hdl.handle.net/10722/231096.
Council of Science Editors:
Li P. Systematics and phylogenetics of disepalum (annonaceae) :
morphological diversification, pollination ecology and historical
biogeography. [Doctoral Dissertation]. University of Hong Kong; 2015. Available from: Li, P. [李佩思]. (2015). Systematics and phylogenetics of disepalum (annonaceae) : morphological diversification, pollination ecology and historical biogeography. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5576758 ; http://dx.doi.org/10.5353/th_b5576758 ; http://hdl.handle.net/10722/231096
University of Hong Kong
20.
Wang, Jing.
Systematics and phylogeny of Dasymaschalon
(Annonaceae).
Degree: PhD, 2009, University of Hong Kong
URL: Wang,
J.
[王静].
(2009).
Systematics
and
phylogeny
of
Dasymaschalon
(Annonaceae).
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b4308542
;
http://dx.doi.org/10.5353/th_b4308542
;
http://hdl.handle.net/10722/56626
published_or_final_version
Biological Sciences
Doctoral
Doctor of Philosophy
Advisors/Committee Members: Saunders, RMK.Subjects/Keywords: Annonaceae - Phylogeny.
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wang, J. (2009). Systematics and phylogeny of Dasymaschalon
(Annonaceae). (Doctoral Dissertation). University of Hong Kong. Retrieved from Wang, J. [王静]. (2009). Systematics and phylogeny of Dasymaschalon (Annonaceae). (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4308542 ; http://dx.doi.org/10.5353/th_b4308542 ; http://hdl.handle.net/10722/56626
Chicago Manual of Style (16th Edition):
Wang, Jing. “Systematics and phylogeny of Dasymaschalon
(Annonaceae).” 2009. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Wang, J. [王静]. (2009). Systematics and phylogeny of Dasymaschalon (Annonaceae). (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4308542 ; http://dx.doi.org/10.5353/th_b4308542 ; http://hdl.handle.net/10722/56626.
MLA Handbook (7th Edition):
Wang, Jing. “Systematics and phylogeny of Dasymaschalon
(Annonaceae).” 2009. Web. 18 Feb 2020.
Vancouver:
Wang J. Systematics and phylogeny of Dasymaschalon
(Annonaceae). [Internet] [Doctoral dissertation]. University of Hong Kong; 2009. [cited 2020 Feb 18].
Available from: Wang, J. [王静]. (2009). Systematics and phylogeny of Dasymaschalon (Annonaceae). (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4308542 ; http://dx.doi.org/10.5353/th_b4308542 ; http://hdl.handle.net/10722/56626.
Council of Science Editors:
Wang J. Systematics and phylogeny of Dasymaschalon
(Annonaceae). [Doctoral Dissertation]. University of Hong Kong; 2009. Available from: Wang, J. [王静]. (2009). Systematics and phylogeny of Dasymaschalon (Annonaceae). (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4308542 ; http://dx.doi.org/10.5353/th_b4308542 ; http://hdl.handle.net/10722/56626
University of Hong Kong
21.
Guo, Xing.
Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals.
Degree: PhD, 2016, University of Hong Kong
URL: Guo,
X.
[{275c6c}兴].
(2016).
Systematics,
phylogenetics
and
biogeography
of
the
Dasymaschalon
alliance
(Annonaceae)
:
testing
hypotheses
of
ancient
hybridization
and
evolutionary
loss
of
inner
petals.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b5760921.
;
http://dx.doi.org/10.5353/th_b5760921
;
http://hdl.handle.net/10722/240786
► The ‘Dasymaschalon alliance’ is a well-supported clade in Annonaceae tribe Uvarieae, comprising the genera Dasymaschalon, Desmos, Friesodielsia and Monanthotaxis. Generic non-monophyly and the remarkable floral…
(more)
▼ The ‘Dasymaschalon alliance’ is a well-supported
clade in Annonaceae tribe Uvarieae, comprising the genera
Dasymaschalon, Desmos, Friesodielsia and Monanthotaxis. Generic
non-monophyly and the remarkable floral diversity in this lineage
offers opportunities to investigate natural hybridization,
morphological innovations and functional adaptations. The lack of a
robust phylogenetic framework has been an impediment to such
evolutionary research, however.
Maximum parsimony, maximum
likelihood and Bayesian phylogenetic analyses based on an
87-accession dataset from five chloroplast DNA markers (matK, ndhF,
psbA-trnH, rbcL, and trnL-F) and two nuclear ribosomal markers (ETS
and ITS) were performed to reassess generic monophyly and clarify
intergeneric relationships. The results indicate that Friesodielsia
is highly polyphyletic, with species scattered across five
different lineages. A narrow circumscription restricted to only
Asian species is recommended, necessitating several nomenclatural
changes. Gene trees derived from separate analyses of chloroplast
and nuclear ribosomal datasets showed hard incongruence involving
the Dasymaschalon filipes-longiflorum-tibetense clade, indicating
potential hybridization during the course of evolution.
Temporal
and spatial patterns of diversification were investigated based on
an additional taxa dataset, comprising 131 taxa including major
genera of the family based on the same seven molecular markers. The
results corroborate previous studies which show a Late
Oligocene-Early Miocene origin in Africa, with subsequent Miocene
overland dispersal to Asia via Arabian Peninsula. The lineages
subsequently proliferated in Asia, giving rise to three
genera-Desmos, Dasymaschalon and Friesodielsia s. str.- which show
independent dispersal to eastern Malesia.
Three approaches -
molecular dating, incongruence pattern comparison, and a
multi-accession phylogenetic reconstruction - were used to assess
the patterns
and causes of the Dasymaschalon gene tree
incongruence. The results support a
late Miocene intergeneric
hybridization event between members of the Dasymaschalon and
Friesodielsia s. str. lineages in continental Asia-west Malesia.
Evolution of selected perianth characters of functional
significance were investigated using floral anatomy and ancestral
character-state reconstruction. The results demonstrate that petal
number reduction in Dasymaschalon, synapomorphic for the genus, is
likely the consequence of the complete loss of the inner petal
whorl rather than a developmental centripetal shift of organ
identity. The enclosed pollination chamber and connivence of petals
were identified as synapomorphies for several subclades, suggesting
evolutionary innovations associated with specific pollination
mechanisms.
Novel empirical data on the pollination ecology of
Friesodielsia borneensis were compared with previous studies of
Dasymaschalon and Desmos. Circadian opening and closing of the
flowers, controlled by petal movements, was confirmed in
Friesodielsia and Dasymaschalon, and…
Subjects/Keywords: Phylogeny - Annonaceae; Classification - Annonaceae
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APA (6th Edition):
Guo, X. (2016). Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals. (Doctoral Dissertation). University of Hong Kong. Retrieved from Guo, X. [{275c6c}兴]. (2016). Systematics, phylogenetics and biogeography of the Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient hybridization and evolutionary loss of inner petals. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5760921. ; http://dx.doi.org/10.5353/th_b5760921 ; http://hdl.handle.net/10722/240786
Chicago Manual of Style (16th Edition):
Guo, Xing. “Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals.” 2016. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Guo, X. [{275c6c}兴]. (2016). Systematics, phylogenetics and biogeography of the Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient hybridization and evolutionary loss of inner petals. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5760921. ; http://dx.doi.org/10.5353/th_b5760921 ; http://hdl.handle.net/10722/240786.
MLA Handbook (7th Edition):
Guo, Xing. “Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals.” 2016. Web. 18 Feb 2020.
Vancouver:
Guo X. Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals. [Internet] [Doctoral dissertation]. University of Hong Kong; 2016. [cited 2020 Feb 18].
Available from: Guo, X. [{275c6c}兴]. (2016). Systematics, phylogenetics and biogeography of the Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient hybridization and evolutionary loss of inner petals. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5760921. ; http://dx.doi.org/10.5353/th_b5760921 ; http://hdl.handle.net/10722/240786.
Council of Science Editors:
Guo X. Systematics, phylogenetics and biogeography of the
Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient
hybridization and evolutionary loss of inner petals. [Doctoral Dissertation]. University of Hong Kong; 2016. Available from: Guo, X. [{275c6c}兴]. (2016). Systematics, phylogenetics and biogeography of the Dasymaschalon alliance (Annonaceae) : testing hypotheses of ancient hybridization and evolutionary loss of inner petals. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5760921. ; http://dx.doi.org/10.5353/th_b5760921 ; http://hdl.handle.net/10722/240786
University of Hong Kong
22.
鄧展翔; Tang, Chin-cheung.
Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus.
Degree: PhD, 2014, University of Hong Kong
URL: Tang,
C.
[鄧展翔].
(2014).
Systematics
and
phylogenetics
of
goniothalamus
(annonaceae)
:
a
study
of
putative
rapid,
recent
evolutionary
radiation
in
a
species-rich
palaeotropical
genus.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b5295511
;
http://dx.doi.org/10.5353/th_b5295511
;
http://hdl.handle.net/10722/202378
► Goniothalamus is one of the largest genera in the pantropical angiosperm family Annonaceae. It includes c. 130 species of trees, distributed in tropical lowland and…
(more)
▼ Goniothalamus is one of the largest genera in the
pantropical angiosperm family Annonaceae. It includes c. 130
species of trees, distributed in tropical lowland and submontane
forests in tropical Asia, Australia and Melanesia. Previous studies
have indicated that Goniothalamus shows a significantly higher
diversification rate in comparison to closely related taxa and that
its species diversity is the result of a relatively recent
radiation. The phylogenetic framework necessary for testing this
hypothesis, including the investigation of potential intrinsic and
environmental correlates of this putative radiation, and additional
biogeographical and evolutionary studies, has not previously been
available.
Data from nine chloroplast DNA markers (11,214
aligned characters) and 67 ingroup accessions (c. 50% of the
species diversity) of Goniothalamus are used for parsimony, maximum
likelihood and Bayesian phylogenetic reconstructions. The results
confirm the monophyly of Goniothalamus, indicate several strongly
supported major subclades, and show that most previously described
infrageneric taxa are para- or polyphyletic.
Morphological
character evolution in Goniothalamus is investigated using
ancestral character state reconstructions and phylogenetic analysis
of variance. The evolutionary patterns of 19 morphological
characters for which a significant phylogenetic signal was
identified are discussed in relation to function. Character
correlations indicate two main fruit types: small monocarps
(average diameter c. 1 cm) with glabrous seeds borne on young
growth, which are hypothesized to be predominantly bird-dispersed,
and larger (average diameter 1.5 cm) monocarps with hairy seeds
borne on older twigs, the trunk or close to the ground,
hypothesized to be predominantly mammal dispersed. Synapomorphies
of several subclades of the Goniothalamus
phylogeny are identified
based on the ancestral character reconstructions of 11 categorical
characters.
Molecular dating is performed using two fossil
calibrations, an uncorrelated rates relaxed molecular clock model,
and the most comprehensive Annonaceae dataset to date (738 ingroup
and 5 outgroup accessions, nine chloroplast markers), with the aim
of investigating the historical biogeography of Goniothalamus. Mean
divergence time estimates indicate a Goniothalamus crown group age
of 23 Ma. Biogeographical analyses infer an ancestral area in
western Southeast Asia, two dispersal events from western Southeast
Asia to India, and multiple dispersal events from western Southeast
Asia eastwards to the Philippines, New Guinea and Australia in the
early to late Miocene.
Diversification analyses corroborate
previous studies which indicated that early Annonaceae
diversification was characterized by a low net diversification rate
and high relative extinction rate. The results of the present
study, however, also indicate that the diversification rate peaked
between 9.9 and 0.8 Ma, associated with a low relative extinction
rate. Temporally coinciding environmental (tectonic and…
Advisors/Committee Members: Saunders, RMK.
Subjects/Keywords: Annonaceae - Phylogeny; Annonaceae - Classification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
鄧展翔; Tang, C. (2014). Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus. (Doctoral Dissertation). University of Hong Kong. Retrieved from Tang, C. [鄧展翔]. (2014). Systematics and phylogenetics of goniothalamus (annonaceae) : a study of putative rapid, recent evolutionary radiation in a species-rich palaeotropical genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5295511 ; http://dx.doi.org/10.5353/th_b5295511 ; http://hdl.handle.net/10722/202378
Chicago Manual of Style (16th Edition):
鄧展翔; Tang, Chin-cheung. “Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus.” 2014. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Tang, C. [鄧展翔]. (2014). Systematics and phylogenetics of goniothalamus (annonaceae) : a study of putative rapid, recent evolutionary radiation in a species-rich palaeotropical genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5295511 ; http://dx.doi.org/10.5353/th_b5295511 ; http://hdl.handle.net/10722/202378.
MLA Handbook (7th Edition):
鄧展翔; Tang, Chin-cheung. “Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus.” 2014. Web. 18 Feb 2020.
Vancouver:
鄧展翔; Tang C. Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus. [Internet] [Doctoral dissertation]. University of Hong Kong; 2014. [cited 2020 Feb 18].
Available from: Tang, C. [鄧展翔]. (2014). Systematics and phylogenetics of goniothalamus (annonaceae) : a study of putative rapid, recent evolutionary radiation in a species-rich palaeotropical genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5295511 ; http://dx.doi.org/10.5353/th_b5295511 ; http://hdl.handle.net/10722/202378.
Council of Science Editors:
鄧展翔; Tang C. Systematics and phylogenetics of goniothalamus
(annonaceae) : a study of putative rapid, recent evolutionary
radiation in a species-rich palaeotropical genus. [Doctoral Dissertation]. University of Hong Kong; 2014. Available from: Tang, C. [鄧展翔]. (2014). Systematics and phylogenetics of goniothalamus (annonaceae) : a study of putative rapid, recent evolutionary radiation in a species-rich palaeotropical genus. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5295511 ; http://dx.doi.org/10.5353/th_b5295511 ; http://hdl.handle.net/10722/202378
University of Cincinnati
23.
Gierek, Stephanie.
A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae).
Degree: MS, Arts and Sciences: Biological Sciences, 2018, University of Cincinnati
URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535701915489834
► Blaesoxipha and Spirobolomyia are two genera from the large family Sarcophagidae, more commonly known as flesh flies. These two genera are parasitoids to a wide…
(more)
▼ Blaesoxipha and Spirobolomyia are two genera from the
large family Sarcophagidae, more commonly known as flesh flies.
These two genera are parasitoids to a wide variety of other
arthropods. When Spirobolomyia was first described by Townsend in
1917, it was a new genus with only one species. In 1965, Downes
synonymized Spirobolomyia with Blaesoxipha, giving it subgeneric
status, and included 3 new species. In 1996, Pape added another
species and removed Spirobolomyia from Blaesoxipha returning it to
genus status. In this study, I infer a
phylogeny using the
cytochrome oxidase I (COI) and NADH dehydrogenase (ND4) genes from
the fly’s mitochondrial DNA (mtDNA) in hopes of determining if
Spirobolomyia should remain a genus or be reduced to subgeneric
status under Blaesoxipha. The
phylogeny infers strong support for
monophly of Spirobolomyia. However due to the nolow support of
monophlyly from the Maximum Likelihood analysis but support from
the Bayesian Inference, of the monophyly of Blaesoxipha, more data
is needed to determine the placement of
Spirobolomyia.
Advisors/Committee Members: DeBry, Ronald (Committee Chair).
Subjects/Keywords: Entomology; Phylogeny; Spirobolomyia; Blaesoxipha
Record Details
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gierek, S. (2018). A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae). (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535701915489834
Chicago Manual of Style (16th Edition):
Gierek, Stephanie. “A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae).” 2018. Masters Thesis, University of Cincinnati. Accessed February 18, 2020.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535701915489834.
MLA Handbook (7th Edition):
Gierek, Stephanie. “A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae).” 2018. Web. 18 Feb 2020.
Vancouver:
Gierek S. A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae). [Internet] [Masters thesis]. University of Cincinnati; 2018. [cited 2020 Feb 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535701915489834.
Council of Science Editors:
Gierek S. A Phylogeny of Genera Spirobolomyia and Blaesoxipha
(Diptera:Sarcophagidae). [Masters Thesis]. University of Cincinnati; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535701915489834
University of Illinois – Urbana-Champaign
24.
Debevec, Andrew.
Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae).
Degree: MS, 0324, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/73096
► Subfamily Microgastrinae (Hymenoptera: Braconidae) is one of the largest subfamilies of parasitoid wasps, both in terms of number of described species as well as estimated…
(more)
▼ Subfamily Microgastrinae (Hymenoptera: Braconidae) is one of the largest subfamilies of parasitoid wasps, both in terms of number of described species as well as estimated total number of species. Containing ~57 genera and exclusively attacking Lepidoptera, most of the diversity is concentrated within a few very large genera, with many smaller genera, including Xanthomicrogaster Cameron, 1911, existing with unknown morphological boundaries, life histories, and habitat use information. Containing only four described species, Xanthomicrogaster is one of the smallest genera, with extremely little information known. In addition to this lack of knowledge, Xanthomicrogaster is an extremely rarely collected genus, both in Malaise traps and rearing projects.
Through the large scale efforts of the Área de Conservación Guanacaste (ACG) project in Costa Rica, over 50 specimens of Xanthomicrogaster have been collected, both through Malaise traps and caterpillar rearing. In addition to these specimens, borrowed material of undescribed Xanthomicrogaster species from the Canadian National Collection (CNC) and Texas A&M University insect collection (TAMU) is examined in order to understand the variation and geographic range of the genus. Previous descriptions of the genus and the recognized species are examined and placed into context using the material from across the geographic range. Seven species are newly described here from the ACG project, identified using morphology, DNA sequences (COI, wingless, and 28S rDNA), and host caterpillar with host plant records. The morphological boundaries of the genus are proposed, and a dichotomous key to world species is presented to facilitate identification and future description of species. Two molecular phylogenies are produced, using appropriate outgroups: one for all newly described species using three genes, and one for all Xanthomicrogaster specimens obtained from the ACG project using the COI barcode region.
Host caterpillar use with host plant records is examined in the context of the
phylogeny, revealing that Xanthomicrogaster specialize on concealed hosts, especially within superfamily Gelechioidea (Lepidoptera). In addition, sexual dimorphism is examined for the first time, as associations could be made using COI barcode information, revealing that males are often darker than females and are never collected in Malaise traps.
Color patterns in Xanthomicrogaster are examined, especially as they vary by sex, geography, and
phylogeny. The geographic range of Xanthomicrogaster is strictly Neotropical, apparently restricted by the Sierra Madre del Sur range in Mexico and the Andes between Argentina and Chile. In addition, the genus Xanthomicrogaster occurs in Trinidad, but it is unknown if its range extends to the island of Tobago or beyond. In terms of elevation, specimens of Xanthomicrogaster have been collected from 13 m to 1600+ m. This revision increases the knowledge about Xanthomicrogaster, synthesizing research from the past 100 years and setting the stage for future…
Advisors/Committee Members: Whitfield, James B. (advisor).
Subjects/Keywords: Xanthomicrogaster; taxonomy; molecular phylogeny; Microgastrinae
Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Debevec, A. (2015). Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae). (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/73096
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Debevec, Andrew. “Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae).” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed February 18, 2020.
http://hdl.handle.net/2142/73096.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Debevec, Andrew. “Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae).” 2015. Web. 18 Feb 2020.
Vancouver:
Debevec A. Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae). [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/2142/73096.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Debevec A. Revision of Xanthomicrogaster Cameron, 1911 (Hymenoptera: Braconidae: Microgastrinae). [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/73096
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
25.
Hampe, Kerri Robyn.
Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases.
Degree: MS(M.S.), Applied Natural Science, 2018, Colorado State University – Pueblo
URL: http://hdl.handle.net/10217/187684
► Metallopeptidases are proteolytic enzymes that are involved in many biological processes and can be found in many organisms. The MA Family M1 aminopeptidases share a…
(more)
▼ Metallopeptidases are proteolytic enzymes that are involved in many biological processes and can be found in many organisms. The MA Family M1 aminopeptidases share a conserved motif consisting of a zinc-binding site where the associated residues and a single zinc ion are engaged in hydrolyzing one to three amino acids from the amino terminus of a peptide chain. Their enzymatic activity has been seen in the regulation of cell cycle and apoptosis, tumor growth and angiogenesis, gene and hormone regulation, immune cell development and stress response. Through the use of sequence databases and phylogenetic inference programs, phylogenetic analyses of one hundred and three hypothetical M1 aminopeptidase sequences from a wide variety of organisms was conducted. The analysis included several additions of known M1 aminopeptidase sequences to help elucidate the cellular properties of the hypothetical proteins. Results revealed profound similarities between the consensus and neighbor-joining trees which implies a strong topology. Amino acid sequences from organisms in the Archaea and Bacteria domains grouped separately from that of the Eukaryotes, suggesting that evolutionary history of the M1 aminopeptidases has an ancient split, and little horizontal transfer has occurred. There was also definitive clustering of M1 aminopeptidases with putative sequences found using both tree methods. Interestingly, these clades uncovered close relationships between known protein sequences from the human and hypothetical protein sequences from the mouse, zebra fish and aquatic frog. Using this information, research experiments focused on M1 aminopeptidases in humans, or other proteins, can utilize these organisms as test subjects providing the scientist with more cost-efficient and reliable results. In general, this study gave several unknown proteins a plausible identity which can only help to answer questions about the evolutionary impact of these aminopeptidases. Future studies involving aminopeptidase inhibitors targeted at specific M1 aminopeptidases could help to impede associated cancers, infertility and certain neurological disorders.
Subjects/Keywords: Phylogeny; Proteolytic enzymes; Aminopeptidases
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Record Details
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hampe, K. R. (2018). Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases. (Masters Thesis). Colorado State University – Pueblo. Retrieved from http://hdl.handle.net/10217/187684
Chicago Manual of Style (16th Edition):
Hampe, Kerri Robyn. “Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases.” 2018. Masters Thesis, Colorado State University – Pueblo. Accessed February 18, 2020.
http://hdl.handle.net/10217/187684.
MLA Handbook (7th Edition):
Hampe, Kerri Robyn. “Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases.” 2018. Web. 18 Feb 2020.
Vancouver:
Hampe KR. Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases. [Internet] [Masters thesis]. Colorado State University – Pueblo; 2018. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10217/187684.
Council of Science Editors:
Hampe KR. Phylogenetic analysis of hypothetical protein sequences homologous to M1 aminopeptidases. [Masters Thesis]. Colorado State University – Pueblo; 2018. Available from: http://hdl.handle.net/10217/187684
NSYSU
26.
Jiang, Yu-xuan.
Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences.
Degree: Master, Marine Biology, 2010, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819110-155556
► According to previous morphological studies on percoid phylogenies, Pempheridae may have a closer relationship to Glaucosomatidae, Teraponidae, Bramidae, Carangidae, Centropomidae, Kyphosidae, Leiognathidae, Menidae, Nandidae, Percichthyidae,…
(more)
▼ According to previous morphological studies on percoid phylogenies, Pempheridae may have a closer relationship to Glaucosomatidae, Teraponidae, Bramidae, Carangidae, Centropomidae, Kyphosidae, Leiognathidae, Menidae, Nandidae, Percichthyidae, Polynemidae, Sciaenidae or Toxotidae. About 10% of 515 fish families are soniferous and Pempheridae is one of the soniferous families in Percoidei. A pair of slits has been found at the anterodorsal sides of the swimbladder in Glaucosomatidae, Teraponidae and Pempheridae, and it suggests that they have closer relationship. And preliminary study on molecular
phylogeny has evidence supporting that Glaucosomatidae and Pempheridae are sister goups. In this study, I compared the sonic muscle, swimbladder morphology, slit and associated structures in percoid soniferous fishes, including Pempheridae, Glaucosomatidae, Teraponidae, Sciaenidae, Priacanthidae, Haemulidae, Cichlidae and Pomacentridae. I found that there are synapomorphic characters in Pempheridae, Glaucosomatidae and Teraponidae; the slits and elastic tissue in the swimbladder are similar, and are limited to these three families. Furthermore, 16S rRNA, COI, Cytb and Rhodopsin gene sequences data were used for phylogenetic studies. And the results reveal that Pempheridae and Glaucosomatidae are sister groups and they are not closely related to Teraponidae. Therefore, the similary of sonic system in Teraponidae, Pempheridae and Glaucosomatidae may have evolved at least twice in the Percoidei and convergent evolution might also have taken placed.
Advisors/Committee Members: Meng-Hsien Chen (chair), Hin-Kiu Mok (committee member), Hsueh-Wen Chang (chair).
Subjects/Keywords: molecular phylogeny; Pempheridae; sonic system
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jiang, Y. (2010). Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819110-155556
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jiang, Yu-xuan. “Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences.” 2010. Thesis, NSYSU. Accessed February 18, 2020.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819110-155556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jiang, Yu-xuan. “Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences.” 2010. Web. 18 Feb 2020.
Vancouver:
Jiang Y. Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences. [Internet] [Thesis]. NSYSU; 2010. [cited 2020 Feb 18].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819110-155556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jiang Y. Phylogeny of Pempheridae inferred from sound-producing structure and DNA sequences. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819110-155556
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
27.
Chuang, Shih-Fung.
Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan.
Degree: Master, Marine Resources, 2003, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1003103-141716
► The genus Petrolisthes is the largest, the most widely distributed genus in the family Porcellanidae. It contains over 100 species distributed around the world ,…
(more)
▼ The genus Petrolisthes is the largest, the most widely distributed genus in the family Porcellanidae. It contains over 100 species distributed around the world , including over 16 species commonly found near the shore of Taiwan . We discuss the diversity and
phylogeny of them, and the similarities and dissimilarites of between the molecular biology and traditional morphology.
We got 15 pocerlain crabs specimen and almost 900bp and 800bp of them in the 16S rRNA and 12SrRNA of MtDNA respectively. The average pairwise distances is 0.2510 and 0.2249, and the phylogenetic relationship can be determined by observing the morphology of the Petrolisthes crabs, especially the number of spines on the anterior margin of the carpus of the chelipeds, which are an important basis for evolution and classfication.
The tree is made from the morphological characters is put more weight by us to the numbers of spines on the anterior margin of the carpus of the chelipeds, and the presence or not of the spines of the outline of the chelipeds. And we can get the same resuit as the molecular phylogenetical tree. This provides an evidence to the situation that molecular
phylogeny will present to the morphological character, and some of the characters are more important to the molecular evolution.
The
phylogeny relationship of porcelain crabs of the west and east Pacific donât be separated by the Pacific. But the primary phylogenetic relationship still present to the morphological characters. The group T is some species that evolve rapidly with the environment at the later evolution phase.
The mitochondrial DNA of Petrolisthes has been sequencing two third of all and compared with the 5 previously studied species ï¼Limulus polyphemusãArtemia franciscanaãDaphnia pulexãPenaeus mondonãPagurus longicarpusï¼in the class Crustacean. The results reveal that the genome of Petrolisthes is arranged most like that of the hermit crab Pagurus, suggesting they may share an ancestral phenotype. However, the start and terminal codon of Petrolisthes show a unusual similarity to that of Penaeus, the phylogenetic result of the sequence of the protein coding genes support the classification to the anomura conclude the Pagurus and Petrolisthes, and there are high bootstrap values more than 84 with the clade of Pagurus and Petrolisthes in the neighbor-joining method tree and maximum parsimony tree. These analysis showed encourage much needed research and discussion about the relationship between anomura, brachyura and macrura, of the order Decapoda.
Advisors/Committee Members: I-Shiong Chen (chair), Lee-Shing Fang (committee member), I-Ming Chen (committee member), Siong-Ping Yu (chair).
Subjects/Keywords: Petrolisthes; phylogeny
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APA (6th Edition):
Chuang, S. (2003). Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1003103-141716
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chuang, Shih-Fung. “Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan.” 2003. Thesis, NSYSU. Accessed February 18, 2020.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1003103-141716.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chuang, Shih-Fung. “Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan.” 2003. Web. 18 Feb 2020.
Vancouver:
Chuang S. Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan. [Internet] [Thesis]. NSYSU; 2003. [cited 2020 Feb 18].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1003103-141716.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chuang S. Molecular phylogenetic study of the crabs genus Petrolisthes in Taiwan. [Thesis]. NSYSU; 2003. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1003103-141716
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Oregon State University
28.
Kettratad, Jes.
The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon.
Degree: PhD, Fisheries Science, 2008, Oregon State University
URL: http://hdl.handle.net/1957/10464
► The Pacific Northwest has a relatively low diversity of primary freshwater fishes with most of the endemism and diversity in the Columbia River and Klamath…
(more)
▼ The Pacific Northwest has a relatively low diversity of primary freshwater fishes
with most of the endemism and diversity in the Columbia River and Klamath River.
However, the Oregon Coastal Subprovince defined as the coastal rivers from Miami
River in the north to Sixes River in the south, has a relatively diverse primary freshwater
fish fauna, and, potentially unrecognized endemism. The species diversity and endemism
of these systems is not clear because their taxa are allopatric members of more wide
ranging taxa with some recognized as distinct species while others are not. The presence
of primary freshwater fishes in the Oregon Coastal Subprovince has been explained as
either due to their origin in the coastal river systems or dispersal to coastal rivers from the
Willamette River.
The goals of this study were: 1) to describe fishes in the genera Catostomus and
Ptychocheilus in the Oregon Coastal Subprovince using morphological data and
mitochondrial cytochrome b sequences; 2) to investigate the relationships of fishes in the
Oregon Coastal Subprovince to nearby provinces; and 3) to address competing distribution theories.
In this study, I re-described C. tsiltcoosensis, C. macrocheilus, C. rimiculus, P.
umpquae and P. oregonensis and recognized C. sp A (Coquille River) and C. sp. B
(Rogue River). Catostomus tsiltcoosensis and C. sp. A tend to have higher counts of
infraorbital pores and fewer dorsal fin rays than C. macrocheilus. Catostomus
tsiltcoosensis had six fixed base pair differences from C. macrocheilus. Catostomus sp. A
had 14 fixed base pair differences in cytochrome b from C. macrocheilus and C.
tsiltcoosensis and had a narrower body width at base of the pectoral fin than C.
tsiltcoosensis. In the cytochrome b
phylogeny, C. macrocheilus (Columbia) was sister to
C. tsiltcoosensis (Siuslaw River, Umpqua River and Coos River) and C. sp. A (Coquille
River) was sister to C. macrocheilus and C. tsiltcoosensis plus C. columbianus and C.
tahoensis. The Rogue River C. sp B was recognized as a separate species from C.
rimiculus because it had higher counts of vertebrae anterior to the dorsal fin and had nine
fixed base pair differences from C. rimiculus. Although Catostomus sp. B was previously
placed in C. rimiculus, phylogenetic analysis showed C. rimiculus was more closely
related to other catostomids in the Klamath Basin than to C. sp. B. This was likely caused
by hybridization among four different species of suckers in the Klamath system.
Ptychocheilus oregonensis tended to have fewer scales around the caudal
peduncle, fewer scales above the lateral line, fewer transverse scales, deeper body depth
at the origin of the dorsal fin, and shallower caudal peduncle than P. umpquae.
Ptychocheilus umpquae had 15 fixed base pair differences from P. oregonensis. Based on
phylogenetic analysis, P. oregonensis (Columbia - Willamette River) was sister to the P.
umpquae (Siuslaw and Umpqua) and P. grandis (Sacramento) was sister to both. If C.…
Advisors/Committee Members: Douglas, Markle (advisor), Liston, Aaron (committee member).
Subjects/Keywords: fish; Catostomus – Oregon – Phylogeny
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APA (6th Edition):
Kettratad, J. (2008). The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/10464
Chicago Manual of Style (16th Edition):
Kettratad, Jes. “The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon.” 2008. Doctoral Dissertation, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/10464.
MLA Handbook (7th Edition):
Kettratad, Jes. “The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon.” 2008. Web. 18 Feb 2020.
Vancouver:
Kettratad J. The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon. [Internet] [Doctoral dissertation]. Oregon State University; 2008. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/10464.
Council of Science Editors:
Kettratad J. The Oregon Coastal Subprovince, a new biogeographic subprovince for primary freshwater fishes in Oregon. [Doctoral Dissertation]. Oregon State University; 2008. Available from: http://hdl.handle.net/1957/10464
Oregon State University
29.
Krupkin, Alexander Bennett.
Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions.
Degree: MS, Forest Science, 1992, Oregon State University
URL: http://hdl.handle.net/1957/10941
► Plastid DNA restriction site and rearrangement mutations were used to study phylogenetic relationships among hard pines (subgenus Pinus). Total genomic DNA was cut with 19…
(more)
▼ Plastid DNA restriction site and rearrangement mutations were used to study phylogenetic relationships among hard pines (subgenus Pinus). Total genomic DNA was cut with 19 restriction enzymes, blotted, and then probed mostly with 80% of the Douglas-Fir (Pseudotsuga menziesii) chioroplast genome (cpDNA) {initial study, using only 6bp recognition enzymes}; or, clones encompassing the entire chloroplast genome of Pinus contorta (Lidholm and
Gustafsson 1991) {final study, using only 4bp recognition enzymes}. A total of 202 mutations were recognized, 116 of which were phylogenetically informative, and subjected
to Wagner and Dollo bootstrap analyses. A number of clades were distinguished at the 95's significance level or above, revealing some important differences relative to the widely recognized taxonomy of Little and Critchfield (1969). The divisional differences are: 1) movement of subsection Sylvestres into the same monophyletic dade as
other Old World subsections (Pineae, Canariensis), subsection Sabiananae monophyletic with subsection Ponderosae, subsection Leiophylla in same monophyletic
dade as subsection Oocarpae, and, P. radiata in its own monotypic dade separate from subsection Oocarpae. Species reassignments include: P. teocote from subsection Ponderosae into Oocarpae dade, and, P. halepensis from subsection Sylvestres to be grouped monophyletically with P. pinea. Next, the 197 site mutations were used to
calculate percent sequence divergence among the species studied. Only results from the final study were discussed in detail, since the data from the initial study were
problematic. Overall rates of cpDNA evolution (1-2x10-10) in hard pines were approximately an order of magnitude lower than the value for angiosperms, but similar to values found in another long-lived woody plant taxa, Palms. Subsection Pineae {P. halepensis P. pinea} is hypothesized to be ancestral to the subgenus, arising sometime during the Late Jurassic-Early Cretaceous; while a Contortae-like progenitor is judged to be ancestral to New World taxa. In general, the divergence values give extensive insight into how major geological events shaped hard pine
phylogeny. Compared to prior work, the use of restriction enzymes recognizing shorter sequences, thus
more frequently cutting, coupled with smaller, more homologous, probes have greatly increased resolution of the molecular
phylogeny among hard pines. Future work in hard pine
phylogeny should include more species, and the same probe-enzyme combinations, so that direct inferences can be made, while similar methods could be used to define relationships among the soft (subgenus Strobus) pines as well as other conifers. In any case, future studies
should attempt to obtain data in the form of concise mutations, and be expanded to include data from the nuclear and mitochondrial genomes. Also, chloroplast DNA (cpDNA) restriction maps were constructed for three hard (subgenus Pinus) pines: L
inea, P. sylvestres, and P. ponderosa; and compared with all other published Pinaceae cpDNA…
Advisors/Committee Members: Liston, Aaron (advisor).
Subjects/Keywords: Pine – Phylogeny
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APA ·
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Manager
APA (6th Edition):
Krupkin, A. B. (1992). Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/10941
Chicago Manual of Style (16th Edition):
Krupkin, Alexander Bennett. “Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions.” 1992. Masters Thesis, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/10941.
MLA Handbook (7th Edition):
Krupkin, Alexander Bennett. “Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions.” 1992. Web. 18 Feb 2020.
Vancouver:
Krupkin AB. Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions. [Internet] [Masters thesis]. Oregon State University; 1992. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/10941.
Council of Science Editors:
Krupkin AB. Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions. [Masters Thesis]. Oregon State University; 1992. Available from: http://hdl.handle.net/1957/10941
Kent State University
30.
Morris, Julie A.
A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly.
Degree: PhD, College of Arts and Sciences / Department of Biological
Sciences, 2007, Kent State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=kent1185584449
► Lythraceae is comprised of approximately 32 genera and 600 species of flowering plants with a worldwide distribution. In addition to having several economically and ecologically…
(more)
▼ Lythraceae is comprised of approximately 32 genera and
600 species of flowering plants with a worldwide distribution. In
addition to having several economically and ecologically important
taxa, Lythraceae is one of very few families exhibiting
heterostyly, a rare reproductive polymorphism in plants in which
flower morphs differ reciprocally in the height of their anthers
and stigmas. The mode of inheritance, function, and adaptive
significance of heterostyly have been the focus of extensive study,
however its evolutionary history remains poorly understood. Well
resolved phylogenies of groups having both heterostylous and
homostylous members, such as the Lythraceae, provide evidence to
evaluate alternate evolutionary hypotheses. Extreme variations in
habit combined with a generalized floral morphology have obscured
relationships among these genera based on morphological characters.
Previous molecular analyses have been unable to distinguish basal
relationships within the family, complicating both taxonomic
classification and inferences of ancestral characters for the study
of morphological evolution. This dissertation describes the most
comprehensive molecular phylogenetic analyses to date of
Lythraceae, and its type genus Lythrum –a relatively large genus
that also contains both heterostylous and homostylous species.
These new analyses permit evaluation of current taxonomy, and
provide a framework for studying the evolution of heterostyly at
both taxonomic levels. Adding new molecular data to previous
sequence data using multiple inference techniques, the resulting
topologies are congruent and generally well resolved, but challenge
the current taxonomic classification of these taxa. At the family
level, terminal clades are more stable than in previous analyses,
however, support for basal relationships remains relatively low,
possibly because of an early rapid radiation. Within Lythrum,
diversification appears to have occurred more recently, and strong
biogeographical patterns exist. Ancestral character state
reconstruction of heterostyly was performed using the Lythraceae
phylogeny. Various reconstruction methods and character-weighting
schemes provide ambiguous results, with estimates ranging from 5
independent origins of heterostyly, to a single origin for the
family followed by repeated parallel reversions to homostyly. While
the direction of change remains uncertain, multiple changes have
undoubtedly occurred, and some evidence suggests that a single
evolutionary gain followed by multiple parallel losses may be
likely.
Advisors/Committee Members: Case, Andrea (Advisor).
Subjects/Keywords: Lythraceae; Lythrum; heterostyly; phylogeny
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APA ·
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MLA ·
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APA (6th Edition):
Morris, J. A. (2007). A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1185584449
Chicago Manual of Style (16th Edition):
Morris, Julie A. “A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly.” 2007. Doctoral Dissertation, Kent State University. Accessed February 18, 2020.
http://rave.ohiolink.edu/etdc/view?acc_num=kent1185584449.
MLA Handbook (7th Edition):
Morris, Julie A. “A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly.” 2007. Web. 18 Feb 2020.
Vancouver:
Morris JA. A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly. [Internet] [Doctoral dissertation]. Kent State University; 2007. [cited 2020 Feb 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1185584449.
Council of Science Editors:
Morris JA. A Molecular Phylogeny of the Lythraceae and Inference of the
Evolution of Heterostyly. [Doctoral Dissertation]. Kent State University; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1185584449
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Open Access Theses and Dissertations