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 58 for “"multi-locus."”.
-
Inference of parsimonious species phylogenies from multi-locus data
… trees from genetic data, we sequence a single locus in species genomes, reconstruct a gene tree, and report it as the species tree. Biologists have long acknowledged that a gene tree can be different from a species tree, thus implying that this traditional method might infer the wrong species …
-
Multi-locus phylogenetic inference of the howler monkey (Alouatta) radiation in South America.
<p><strong>Abstract</strong></p> <p>Howler monkeys (<em>Alouatta</em>) are the most widely distributed New World primates, ranging from southern Mexico to northern Argentina. They occur in tropical rain forests, flooded and gallery forests, and deciduous and semi-deciduous environments. Despite …
-
A Phylogenetic History of the Tenerife Skink Chalcides viridanus: A multi-locus Coalescent Approach
… discovered genetic clades as distinct species. A multi-locus approach was undertaken, using more informative mtDNA gene fragments (Cyt-b & ND1 & 2, totalling 1566bp) as well as the sequencing of 5 nuclear loci (PRLR-555bp, Rag-1-761bp, RELN-583bp, EXPH-796bp and SELT-414bp). These sequences were …
-
Identification of genomic factors using family-based association studies
… these spurious associations. Here we focus on multi-locus association studies of quantitative traits and the case-control status, and propose algorithms that take into consideration of genetic related samples to address possible confounding issues. As supervised dimension reduction methods, …
-
Evolutionary Relationships Among Duiker Antelope (Bovidae: Cephalophinae)
… mitochondrial and nuclear genes to estimate a multi-locus species tree and to date divergence times. DNA barcodes are unable to distinguish many sister taxa, calling into question the utility of barcodes for the regulation of duiker trade or in identification of field-collected feces. The …
-
A citywide, clonal outbreak of Pseudomonas aeruginosa during a drought
… cases were mapped. Whole genome sequencing and multi-locus sequence typing were used to determine clonality and identify virulence genes. A modified case-control study in a subset of patients with bloodstream infection compared demographic and clinical characteristics between sequence types. …
-
The identification and characterization of a clinical isolate of a methicillin susceptible Staphylococcus aureus ST612
… for the presence of ST612-MSSA. spa typing and multi-locus sequence typing (MLST) identified one isolate, MS14, as ST612-MSSA, spa type t064.
-
Molecular phylogenetics of the North American snake tribe Thamnophiini
… two paradigms for the phylogenetic analysis of multi-locus sequence data: one which forces all genes to share the same underlying history, and another that allows genes to follow idiosyncratic patterns of descent from ancestral alleles. The first of these approaches (concatenation) is a …
-
Genetic diversity of African isolates of Toxoplasma gondii
… phenotype relationships). In this study, multi-locus nested PCRsequence analysis of seven Ugandan T. gondii isolates was applied using nine differentgenetic markers distributed across seven chromosomes and the apicoplast genome of T.gondii, which improved the discrimination power to detect …
-
Molecular phylogenetics, systematics, reproductive safeguarding and chromosome evolution of the genus Lachenalia (Asparagaceae: Scilloideae)
… hypothesis for Lachenalia is presented, using multi-locus sequence data sampled from living material of 132 taxa via maximum likelihood and coalescent-based species tree estimation (ASTRAL), as applied to 378 hybrid enrichment loci. This resolves species-level relationships with good support, …
-
Invasion genomics, adaptive evolution, and transcriptional plasticity of Anopheles stephensi in Ethiopia and Yemen : implications for malaria transmission and control.
… vector and influence malaria control efforts. Multi-locus analyses reveal genetic interactions between An. stephensi and Plasmodium falciparum, highlighting evolutionary feedbacks within the transmission system. High-resolution whole-genome sequencing resolves population structure, …
-
Epidemiology and population structure of Xylella fastidiosa, the causal agent of bacterial leaf scorch, among urban trees in the District of Columbia
… Q. rubra, U. americana, and P. occidentalis. A multi-locus sequence typing analysis using 10 housekeeping loci for X. fastidiosa revealed five clonal strains among the urban trees. These strains were host specific, with only one clone being associated with members of the red oak family, American …
-
Population Genetics and Speciation in the Plant Genus Silene (section Elisanthe)
… design. The fourth chapter focuses on the multi-locus analysis of autosomal gene sequences from S. latifolia and S. dioica. The relationship between the two species was investigated using various analyses such as isolation modeling and admixture analysis providing estimates of evolutionary …
-
BERINGIAN BIOGEOGRAPHY: PATTERNS OF INTERCONTINENTAL DISPERSAL AND THE STRUCTURING OF A HOLARCTIC TAPEWORM GENUS
… Tenora, 1997. I performed maximum likelihood and multi-locus coalescent phylogenetic reconstructions using mitochondrial and nuclear DNA sequences. Biogeographic ancestral range estimations were conducted on the resulting species phylogeny. My systematic reconstructions reveal as many as 16 …
-
Unraveling the genetic determinants of virulence in Cryptococcus neoformans
… into sequence types (STs), based on an accepted multi-locus sequence typing scheme. In the last decade, several studies have linked ST to patient outcome, with some STs found to be more virulent than others. When genetically matched mice were infected with patient isolates, mortality was …
-
New Species and Phylogeny of the Genus Phytophthora
… B-tub phylogeny was similar to that in previous multi-locus phylogenies, except that P. cinnamomi, P. parvispora, P. quercina, P. stricta, and a provisional species, P. sp. e1, were not clustered in any of the 10 known Phytophthora clades and represented new clades. The B-tub phylogeny was also …
-
Genome-wide association study of Barley Yellow Dwarf Virus resistance in a Nested Association Mapping population of winter wheat using Skim Exome Capture and Practical Haplotype Graph imputation
… Iteratively Nested Keyway (BLINK) and Multi-Locus Mixed Model (MLMM). Significant quantitative trait loci (QTL) were detected on chromosomes 5B, 6A, 7B, and 7D, with BLINK identifying stronger associations for BYDV severity and MLMM capturing additional loci for flowering date. A subset …
-
The Design And Development Of A Comprehensive 49 Locus Y-str Database For Major U.S. Populations
… estimates of Y-STR haplotype frequencies. Such multi-locus haplotype frequencies are required to provide a statistical estimate of the significance of a match. Y-STR loci, unlike traditional STR markers, are not independent of one another and are co-inherited as extended haplotypes of linked …
-
Evolutionary history and taxonomy of the titi monkeys (callicebinae)
… for 50+ wild-caught titi monkey specimens using multi-locus Sanger sequencing (22 nuclear and mitochondrial loci, > 14,500 bp) and reduced representation, genome-wide double-digest restriction-associated DNA (ddRAD) sequencing. A statistical biogeographical approach was employed to reconstruct …
-
To study the fitness of Bacillus thuringiensis to survive in natural and artificial, terrestrial ecosystems
The present work is the first report of the Multi Locus sequence typing (MLST) of the B. thuringiensis strains isolated from the phylloplane of the clover leaf. A clonal population structure was indicated, although greater variation in sequence types (STs) was discovered in previous collections of …
Page 1 of 3