Genome-wide association reveals genetic basis for the propensity to migrate in wild populations of rainbow and steelhead trout.

ABSTRACT: Little is known of the genetic basis of migration despite the ecological benefits migratory species provide to their communities and their rapid global decline due to anthropogenic disturbances in recent years. Using next-generation sequencing of restriction-site-associated DNA (RAD) tags, we genotyped thousands of single nucleotide polymorphisms (SNPs) in two wild populations of migratory steelhead and resident rainbow trout (Oncorhynchus mykiss) from the Pacific Northwest of the United States. One population maintains a connection to the sea, whereas the other population has been sequestered from its access to the ocean for more than 50 years by a hydropower dam. Here we performed a genome-wide association study to identify 504 RAD SNP markers from several genetic regions that were assoc

SUBMITTER: Hecht BC 

PROVIDER: S-EPMC3609938 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature