Dissertation/Thesis Abstract

Platyrrhine phylogenetics with a focus on callitrichine life history adaptations
by Jameson, Natalie Mae, Ph.D., Wayne State University, 2013, 199; 3601745
Abstract (Summary)

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 to any comparative genomic study. Here we have constructed a reliable phylogenetic framework from which reproductive strategy could be studied in callitrichines. First, to determine the most recent common ancestor of Anthropoid primates we took a phylogenomic approach, using the publicly available whole genome sequences of 17 mammal species. With high confidence, we determined here that Tarsier is the most recent common ancestor to Anthropoid primates. Secondly, we construct a reliable phylogenetic framework for New World monkeys. To do this, genomic sequence databases are developed and parsed for non-genic markers. The resulting phylogeny is based on 40+kb of non-genic genomic data and contains 40 species. Finally the reproductive strategy of callitrichines was investigated. The timing and mechanism of litter size reduction in Goeldi's monkey was accessed though detection of chimerism and adaptive evolution of genes involved in reproduction. We determined based on these analysis that the reduction in litter size is likely pre-ovulation and due to a reversion to mono-ovulation in the species.

Indexing (document details)
Advisor: Wildman, Derek E.
Commitee: Heng, Henry, Uddin, Monica, Yi, Soojin V.
School: Wayne State University
Department: Molecular Biology and Genetics
School Location: United States -- Michigan
Source: DAI-B 75/02(E), Dissertation Abstracts International
Subjects: Evolution and Development
Keywords: Biogeography, Callitrichine adaptations, Chimerism, Life history, Neotropic, Phylogeny, Platyrrhine, Twinning
Publication Number: 3601745
ISBN: 978-1-303-53379-2
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