Genetic architecture of migration-related traits in rainbow and steelhead trout, Oncorhynchus mykiss.

ABSTRACT: Although migration plays a critical role in the evolution and diversification of species, relatively little is known of the genetic architecture underlying this life history in any species. Rainbow and steelhead trout (Oncorhynchus mykiss) naturally segregate for both resident and migratory life-history types, respectively, as do other members of the salmonid family of fishes. Using an experimental cross derived from wild resident rainbow and wild migratory steelhead trout from Southeast Alaska and high throughput restriction-site associated DNA (RAD) tag sequencing, we perform a quantitative trait locus (QTL) analysis to identify the number, position, and relative contribution of genetic effects on a suite of 27 physiological and morphological traits associated with the migratory life his

SUBMITTER: Hecht BC 

PROVIDER: S-EPMC3429926 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature