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Full-Text Articles in Life Sciences
Evolution And Biogeography Of Fire-Eye Antbirds (Genus Pyriglena): Insights From Molecules And Songs, Marcos Maldonado Coelho
Evolution And Biogeography Of Fire-Eye Antbirds (Genus Pyriglena): Insights From Molecules And Songs, Marcos Maldonado Coelho
Dissertations
The importance of climatic and geologic factors as drivers of population differentiation and speciation in the Neotropical region has long been appreciated. However, many questions remain regarding their roles underlying the processes and patterns of diversification. Studies conducted in distinct regions containing a suite of geological and ecological conditions constitute ideal scenarios to assess the role of Pleistocene climatic changes, rivers, and mountain building as historical diversification mechanisms. In chapters 1 and 2, I used an integrative approach combining molecular phylogenetics, phylogeography and population genetics to elucidate the importance of climatic and geological factors as engines of diversification. I focused …
Organization And Composition Of The Α21-Ii Region Of Human Chromosome 21, William Ziccardi
Organization And Composition Of The Α21-Ii Region Of Human Chromosome 21, William Ziccardi
Master's Theses
The purpose of this project was to develop a better map of the alpha 21-II region of human chromosome 21 in regards to size and primary sequence of the five alphoid clusters that comprise the region and to explore the evolutionary relationships that exist within and between these clusters. Several HC21 BACs were identified as containing strong sequence identities to alpha 21-II clones and were mapped to various alpha 21-II clusters. It was revealed that both monomeric and HOR alphoid clusters can be found in the alpha 21-II region. Phylogenetic analysis revealed separate evolutionary histories for the monomeric and HOR …