Signatures of natural selection among lineages and habitats in Oncorhynchus mykiss.

ABSTRACT: Recent advances in molecular interrogation techniques now allow unprecedented genomic inference about the role of adaptive genetic divergence in wild populations. We used high-throughput genotyping to screen a genome-wide panel of 276 single nucleotide polymorphisms (SNPs) for the economically and culturally important salmonid Oncorhynchus mykiss. Samples included 805 individuals from 11 anadromous and resident populations from the northwestern United States and British Columbia, and represented two major lineages including paired populations of each life history within single drainages of each lineage. Overall patterns of variation affirmed clear distinctions between lineages and in most instances, isolation by distance within them. Evidence for divergent selection at eight candidate loci

SUBMITTER: Limborg MT 

PROVIDER: S-EPMC3297173 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature