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.
Results
Showing 1 to 20 of 33 for “"Phylogenetic inference"”.
-
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. …
-
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 …
-
Analysis of word-order universals using Bayesian phylogenetic inference
… by Dunn et al. (2011) that employs the Bayesian phylogenetic inference to compute the Bayes Factors that determine whether the evolutions of a set of word-order traits in four language families are correlated or independent. In the first part of the thesis, the phylogenetic trees of the …
-
Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
… of diversity in the Cape Floristic Region and phylogenetic relationships within this genus have not been fully studied representing a gap in the body of work on the Cyperaceae. Phylogenetic analyses provide strong support for the sister relationship between Isolepis and Ficinia in both …
-
Simultaneous SNV calling and Phylogenetic Inference for Single-cell Sequencing Data
… this task computationally is to rely on a phylogenetic context, since the genomes under analysis evolved from a common ancestor along the branches of a tree. The phylogenetic tree captures the temporal dependencies across the genomes and provides an important constraint that allows to …
-
Multi-locus phylogenetic inference of the howler monkey (Alouatta) radiation in South America.
… known to be ecological indicators. Available phylogenetic hypotheses for this genus have used chromosomal characters, morphological characteristics, and a limited number of molecular markers and specimens. In spite of these analyses, branching patterns among howler species lineages conflict …
-
Analysis of the impact on phylogenetic inference of non-reversible nucleotide substitution models
Most phylogenetic trees are inferred using time-reversible evolutionary models that assume that the relative rates of substitution for any given pair of nucleotides are the same regardless of the direction of the substitutions. However, there is no reason to assume that the underlying biochemical …
-
Distribution and phylogenetic inference within the flightless spring katydids (Tettigoniidae: Brinckiella Chopard, 1955) in the Greater Cape Floristic Region
… study aimed to investigate the distribution and phylogenetic inference within the genus Brinckiella, map the distribution of its species, delimit the species through taxonomy and genetics, and elucidate the phylogenetic relationship and divergence time within the genus. Specimens were collected …
-
Data Driven Models for Language Evolution
… of languages may be discovered, while linguistic phylogenetic inference aims to estimate the genetic relationships that exist between them. In this thesis, using several techniques originally developed for biological sequence analysis, we have designed a data driven orthographic learning system …
-
Bayesian phylogenetic models for relaxed clock and trait evolution
… Carlo (MCMC) has become a common approach for phylogenetic inference. While huge amount of data provides signi cant information of evolution, phylogenetic inference of larger data sets requires more e cient MCMC methods. In the meantime, it remains challenging to estimate phylogenetic trees …
-
Estimation and Comparison of HIV-Specific Substitution Matrices
… are commonly used for sequence alignment, phylogenetic inference and sequence comparison. Empirical organism-specific substitution matrices constructed using only sequence data from a particular organism are thought to lead to more accurate analyses. In HIV research, the standard …
-
Markov chain Monte Carlo and its applications to phylogenetic tree construction
… application of Bayesian methods to problems in phylogenetics. Specifically, we focus on using genetic data to estimate phylogenetic trees representing the evolutionary history of genes and species. Knowledge of this common ancestry has implications for the identification of functions and …
-
Phylogeography of Darlingtonea Kentuckensis and Molecular Systematics of Kentucky Cave Trechines
… Bayesian, and maximum likelihood methods of phylogenetic inference. Comparison of analyses demonstrates conflicting tree topologies among individual markers and different reconstruction methods. Despite a lack of consensus regarding genus-level relationships, most analyses supported each …
-
Problems in Pedigrees and Phylogenies
… requirements under this model. Next, we move to phylogenetic methods for the detection of recombination, or the exchange of genetic material between species. We propose a new recombination detection statistic, in which false positive detection due to convergent evolution can be avoided while …
-
Comparative Phylogenetic Analysis in Populations of the Western Cottonmouth (Agkistrodon Piscivorus Leucostoma) Distributed in Three North American Drainage Basins
… American drainage basins. Using a molecular phylogenetic analysis, Knights et al. (1992) observed that western cottonmouths were highly divergent from both eastern and Florida cottonmouths yet the degree of divergence among populations of the western cottonmouth remains unexplored. During the …
-
From the Origins of Life to Epidemics: Bayesian Inference, Stochastic Simulation, and Dynamics of Bioinformatic Systems
… replication, (b) a new substitution method for phylogenetic inference on the aminoacyl-tRNA synthetase enzymes, which are responsible for attaching amino acids to tRNA molecules and are thereby instrumental to the functioning of the genetic code, and (c) the development, testing, and …
-
Intertwined evolution of swimming, morphology and microhabitat in tree frogs from the subfamily Hylinae
Multidisciplinary studies including phylogenetic inference, functional morphology and phylogenetic comparative methods are imperative to understand how closely related species evolved. By combining those three approaches we aim to disentangle the evolution of morphological traits and their …
-
Targeted Disruption of Lynx2 Reveals Distinct Functions for Lynx Homologues in Learning and Behavior
… and immune system expressed Ly6 genes through phylogenetic inference. I also discovered conserved sequences among Ly6SF proteins additional to the cysteines that characterize the three-dimensional topology of Ly6 domain. From these Ly6SF molecules, I characterize three lynx1 homologues: lynx2, …
-
Comparative morphology and phylogeny of anomalodesmatan bivalves
… and identification of novel characters for phylogenetic inference. Due to the chief role played by the hinge ligament in authoritative discussions of anomalodesmatan evolution, this organ was chosen as the focus of a more detailed treatment. Discontinuous ontogeny of fibrous ligament is …
Page 1 of 2