Patterns of Genome-Wide Diversity and Population Structure in the Drosophila athabasca Species Complex.

ABSTRACT: The Drosophila athabasca species complex contains three recently diverged, prezygotically isolated semispecies (Western-Northern, Eastern-A, and Eastern-B) that are distributed across North America and share zones of sympatry. Inferences based on a handful of loci suggest that this complex might be an ideal system for studying the genetics of incipient speciation and the evolution of prezygotic isolating mechanisms, but patterns of differentiation have not been characterized systematically. Here, we assembled a draft genome for D. athabasca and analyze whole-genome re-sequencing data for 28 individuals from across the species range to characterize genome-wide patterns of diversity and population differentiation among semispecies. Patterns of differentiation on the X-chromosome vs. autosome

SUBMITTER: Wong Miller KM 

PROVIDER: S-EPMC5850846 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature