A genomic selection component analysis characterizes migration-selection balance.

ABSTRACT: The genetic differentiation of populations in response to local selection pressures has long been studied by evolutionary biologists, but key details about the process remain obscure. How rapidly can local adaptation evolve, how extensive is the process across the genome, and how strong are the opposing forces of natural selection and gene flow? Here, we combine direct measurement of survival and reproduction with whole-genome genotyping of a plant species (Mimulus guttatus) that has recently invaded a novel habitat (the Quarry population). We renovate the classic selection component method to accommodate genomic data and observe selection at SNPs throughout the genome. SNPs showing viability selection in Quarry exhibit elevated divergence from neighboring populations relative to neutral S

SUBMITTER: Monnahan PJ 

PROVIDER: S-EPMC4774264 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature