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 1504 for “"phylogenetic"”.
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Jumpstarting Phylogenetic Searches
Phylogenetic analysis is a central tool in studies of comparative genomics. When a new region of DNA is isolated and sequenced, researchers are often forced to throw away months of computation on an existing phylogeny of homologous sequences in order to incorporate this new sequence. The previously …
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Phylogenetic Niche Modeling
… condition change. Modeling niche in a phylogenetic framework leverages a clade's shared evolutionary history to pull species estimates closer towards phylogenetic conserved values and farther away from species specific biases. We propose a new Bayesian model of phylogenetic niche …
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Bayesian Inference of Phylogenetic Networks
… of a species tree. The field of computational phylogenetics has witnessed an explosion in the development of methods for species tree inference under the MSC, owing mainly to the accumulating evidence of incomplete lineage sorting in phylogenomic analyses. However, the evolutionary history of a …
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Phylogenetic Signals in Protein Data
… we introduce a novel method for disentangling phylogenetic noise from the relevant structural signals. This method is grounded in an extension to a well-known theorem in Random Matrix Theory. Through extensive analysis on both synthetic and protein data, we demonstrate that it is possible to …
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Phylogenetic Relationships of Thermophilic Bacteria
… eubacteria and the archaebacteria. The phylogenetic relationships of several new isolates of extremely thermophilic bacteria have been determined and used to gain a deeper understanding of the role of thermophilic bacteria in early evolution. The 16S and 23S ribosomal RNA genes from the …
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Performing phylogenetic placement at scale
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Efficient algorithms for phylogenetic post-analysis
… variety of tasks are typically performed after a phylogenetic reconstruction proper -- tasks which fall under the category phylogenetic post-analysis. In this dissertation, we present novel approaches and efficient algorithms for three post-analysis tasks: taking distances between (typically, all …
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Phylogenetic Tree Inferences Using Quartet Splits
<p>Phylogenetic trees are used by evolutionary biologists and geneticists as a way of classifying the relationships between different taxonomic units (i.e. species, subspecies, genes). The branching of a tree represents one taxonomic unit evolving into two or more different units. These events are …
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Phylogenetic Relationships within Coleeae (Bignoniaceae Juss.)
… The purpose of this study was to explore the phylogenetic relationships within Coleeae. In order to do so, techniques such as PCR by using universal primers for waxy nuclear gene, agarose electrophoresis, cloning and sequencing were performed. A total of 26 taxa were successfully amplified. …
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Constructing Phylogenetic Networks based on Trinets
Abstract The motivation of phylogenetic analysis is to discover the evolutionary relationships between species, with the broader aim of understanding the origins of life. Our understanding of the molecular character- istics of species through DNA sequencing permanently changed the approach to …
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Crustacean phylogenetic systematics and opsin evolution
… of crustacean opsin evolution in context, phylogenetic studies of two crustacean groups (Mysidae and Decapoda) were completed. Studies of Mysidae utilized 16S mtDNA, and 18S and 28S rDNA to reconstruct phylogenetic relationships and assess newly developed Bayesian methods of assessing …
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SCAMPP: Scalable alignment-based phylogenetic placement
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Phylogenetic inference using ancient environmental DNA
… aeDNA has only been applied to population and phylogenetic studies in the last few years. In this thesis, I first build a theoretical coalescent framework to analyze error in supervised binning algorithms, which assign reads from environmental samples to individual taxa in a reference database. …
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Phylogenetic studies on the blood-inhabiting trematodes
<p>Trematodes belonging to the blood-inhabiting group have long attracted the attention of parasitologists and medical men, especially those trematodos belonging to the family Schistosomidae because throw widely distributed species, Schistosoma Japonicum, S. haematobium, and S. mansoni, are …
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A Reconfigurable Implementation of Bayesian Phylogenetic Inference
… phylogenies, but current software solutions for phylogenetic inference are inadequate to keep up with the growing demands of biologists. FPGA co-processor architectures have been shown to effectively speed up the performance of software applications by performing the most time-consuming parts of …
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A phylogenetic study of the Cynipoidea (hymenoptera)
… provided particularly strong support for the phylogenetic reconstruction. Concepts of host defence, host range, gall complexity, gall position, host switching, reproductive cycles, biogeographical distribution, plate tectonics, palaeobotany, palaeoclimatology, the origin of hyperparasitism and …
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Molecular Phylogenetic Analysis of Novel Spiroplasma Isolates
… of the closely related spiroplasma isolates. Phylogenetic analyses and non-genetic character mapping indicated that all study isolates belonged to the Apis clade; arginine hydrolysis was a strong indicator of evolutionary relatedness; surface serology and phylogenetic placement were congruent; …
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