Global population genetic structure of Caenorhabditis remanei reveals incipient speciation.

ABSTRACT: Mating system transitions dramatically alter the evolutionary trajectories of genomes that can be revealed by contrasts of species with disparate modes of reproduction. For such transitions in Caenorhabditis nematodes, some major causes of genome variation in selfing species have been discerned. And yet, we have only limited understanding of species-wide population genetic processes for their outcrossing relatives, which represent the reproductive state of the progenitors of selfing species. Multilocus-multipopulation sequence polymorphism data provide a powerful means to uncover the historical demography and evolutionary processes that shape genomes. Here we survey nucleotide polymorphism across the X chromosome for three populations of the outcrossing nematode Caenorhabditis remanei and

SUBMITTER: Dey A 

PROVIDER: S-EPMC3416005 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature