The genetic basis of smoltification-related traits in Oncorhynchus mykiss.

ABSTRACT: The timing and propensity for migration between fresh- and seawater is a key theme in the diversity of life histories within the salmonid fishes. Across salmonid species, life-history strategies range from wholly freshwater-resident populations, to migratory and nonmigratory variation within populations, to populations and species that are primarily migratory. Despite the central theme of migration to the evolution of these fishes, the genetic architecture of migration-related processes is poorly understood. Using a genetic cross of clonal lines derived from migratory and nonmigratory life-history types of Onchorhynchus mykiss (steelhead and rainbow trout, respectively), we have dissected the genetic architecture of the complex physiological and morphological transformation that occurs imm

SUBMITTER: Nichols KM 

PROVIDER: S-EPMC2475755 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature