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Population Genomics Of A Baboon Hybrid Zone In Zambia, Kenneth Lyu Chiou
Population Genomics Of A Baboon Hybrid Zone In Zambia, Kenneth Lyu Chiou
Arts & Sciences Electronic Theses and Dissertations
Hybridization is increasingly recognized as a common, important process shaping the evolution of organisms including humans. Across hybrid zones, the genomes of incipient species are mixed and recombined through hybridization and backcrossing, creating conditions ideal for evaluating the actions of natural selection on gene variants in novel genomic contexts. This dissertation aims to increase our understanding of hybridization using a Zambian baboon study system in which two species, Kinda baboons (Papio kindae) and grayfoot baboons (Papio griseipes), hybridize despite exhibiting pronounced differences in body size and behavior. Using genome-wide genotypic data prepared using double-digest RADseq, I scan for genomic regions …
A Quantitative Genetic Analysis Of Craniofacial Variation In Baboons, Jessica Lynn Joganic
A Quantitative Genetic Analysis Of Craniofacial Variation In Baboons, Jessica Lynn Joganic
Arts & Sciences Electronic Theses and Dissertations
This dissertation is an explication of baboon craniofacial variation and its genetic basis. Intraspecific variation is the result of input from and complex interactions among genetic information, functional demands, and developmental processes. The relative effect of each of these on craniofacial variation, as well as the degree of inter-trait covariance, determines whether traits can respond to selection and what that response might look like. Using a sample of pedigreed baboons, I quantify craniofacial variation to address specific questions regarding the distribution and magnitude of phenotypic, genetic, and environmental variation patterns. In addition, I identify regions of the genome containing genetic …