Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 220 for “"phylogenetics"”.
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BioInformatics, Phylogenetics, and Aspartate Transcarbamoylase
In this research, the necessity of understanding and using bioinformatics is demonstrated using the enzyme aspartate transcarbamoylase (ATCase) as the model enzyme. The first portion of this research focuses on the use of bioinformatics. A partial sequence of the pyrB gene found in Enterococcus …
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Biogeography and phylogenetics of grassland auchenorrhyncha
Grasslands cover a significant portion of the Earth’s terrestrial surface, yet we know little about the historical biogeography of grassland-restricted lineages. Previous work on the biogeography of grassland taxa has largely focused on large mammals. While these studies have generated some general …
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Molecular phylogenetics of the Metazoan clade Lophotrochozoa
… Chapter 1 presents an introduction to phylogenetics of the Metazoa and the clade Lophotrochozoa. Chapter 2 analyzes higher level relationships between the major groups within the phylum Mollusca using sequences of the nuclear ribosomal large-subunit RNA gene (LSD rDNA). Results …
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Phylogenetics and Phylogeography of Moray Eels (Muraenidae)
This dissertation describes the evolutionary history of Moray eels: Muraenidae). Moray eels are apex predators on coral reefs around the world, but they are not well studied because of their cryptic habitats and occasionally aggressive behaviors. I provide the first molecular phylogeny of moray …
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Molecular phylogenetics and conservation aspects of antelopes
This thesis concerns the molecular phylogenetics of three tribes of the family Bovidae, the Antilopini, Neotragini, and Tragelaphini. None of these tribes have been studied extensively with molecular techniques. The tribe Antilopini is one of the most speciose tribes (it includes 6 genera with 20 …
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Sampled ancestors and dating in Bayesian phylogenetics
This thesis introduces sampled ancestor phylogenetic trees—trees in which sampled taxa can lie directly on the branches and represent ancestors of other taxa that are sampled later. Phylogenetic trees in molecular biology were traditionally reconstructed from molecular data of contemporaneous …
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Phylogenetics and biogeography of Australian subterranean Parabathynellidae.
The putatively ancient subterranean crustacean family Parabathynellidae has been poorly studied, in part because of the problem of obtaining material from difficult to access subterranean habitats in which they live. Further, the systematics of the group has been complicated by their generally …
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Biogeography and phylogenetics of Hawaiian bark lice
In a redefinition of the genus Ptycta (Psocidae), the history of the genera Ptycta Enderlein, 1925, and Copostigma Enderlein, 1903, is assessed. Previously defined as a monophyletic complex based on male genital morphology, Ptycta is redefined as those species of the Ptycta-Copostigma complex with …
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The phylogenetics and systematics of Physaria kingii (Brassicaceae)
1 PDF file (x, 193 pages)
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Contributions to computational phylogenetics and algorithmic self-assembly
… it focuses on problems in both computational phylogenetics, an area of study in which computation is used to better understand evolutionary relationships, and algorithmic self-assembly, an area of study in which biological processes are used to perform computation.</p> <p>The first set of …
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The phylogenetics and evolution of Africa's Larks (Alaudidae)
The larks are a group of dull coloured birds that are conservative in plumage coloration and pattern due to the requirements for camouflage in open habitats. Because many species inhabit structurally similar habitats the group is also characterised by a great deal of morphological convergence. …
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The phylogenetics and evolution of Africa's Larks (Alaudidae)
The larks are a group of dull coloured birds that are conservative in plumage coloration and pattern due to the requirements for camouflage in open habitats. Because many species inhabit structurally similar habitats the group is also characterised by a great deal of morphological convergence. …
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The phylogenetics and evolution of Africa's larks (Alaudidae)
The larks are a group of dull coloured birds that are conservative in plumage coloration and pattern due to the requirements for camouflage in open habitats. Because many species inhabit structurally similar habitats the group is also characterised by a great deal of morphological convergence. …
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Molecular phylogenetics of the North American snake tribe Thamnophiini
… present a thorough examination of the molecular phylogenetics of thamnophiine snakes. The novel methodological approaches may serve as a guideline for future research. Through estimating a robust phylogeny and suggesting taxonomic changes where appropriate, this work provides a foundation for …
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Morphological and Molecular Taxonomic Identification and Phylogenetics of Criconematoidea
<p>The superfamily Criconematoidea has been studied since 1886. It is composed of two families: Criconematidae (subfam. Criconematinae, Hemicycliophorinae) and Tylenchulidae (subfam. Tylenchulinae, Paratylenchinae and Tylenchocriconematinae). Multiple species in genera have been identified and …
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Identifying dryinidae (hymenoptera) - auchenorrhyncha (hemiptera) host associations using phylogenetics
Dryinidae is a family of ectoparasitoid wasps with cosmopolitan distribution that exclusively preys on and parasitizes members of the suborder Auchenorrhyncha (Hemiptera). Host records of these important biocontrol agents are fragmentary because previous records have been based on tedious …
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Platyrrhine Phylogenetics With A Focus On Callitrichine Life History Adaptations
<p>The life history of a species is highly impacted by their reproductive strategy. In my dissertation I address the changing reproductive strategies in callitrichine New World monkeys and their genetic underpinnings using a phylogenetic approach. The necessity for a resolved phylogeny is universal …
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