Population genomics: whole-genome analysis of polymorphism and divergence in Drosophila simulans.

ABSTRACT: The population genetic perspective is that the processes shaping genomic variation can be revealed only through simultaneous investigation of sequence polymorphism and divergence within and between closely related species. Here we present a population genetic analysis of Drosophila simulans based on whole-genome shotgun sequencing of multiple inbred lines and comparison of the resulting data to genome assemblies of the closely related species, D. melanogaster and D. yakuba. We discovered previously unknown, large-scale fluctuations of polymorphism and divergence along chromosome arms, and significantly less polymorphism and faster divergence on the X chromosome. We generated a comprehensive list of functional elements in the D. simulans genome influenced by adaptive evolution. Finally, we

SUBMITTER: Begun DJ 

PROVIDER: S-EPMC2062478 | biostudies-literature | 2007 Nov

REPOSITORIES: biostudies-literature