Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon.

ABSTRACT: The additive genetic effects of traits can be used to predict evolutionary trajectories, such as responses to selection. Non-additive genetic and maternal environmental effects can also change evolutionary trajectories and influence phenotypes, but these effects have received less attention by researchers. We partitioned the phenotypic variance of survival and fitness-related traits into additive genetic, non-additive genetic and maternal environmental effects using a full-factorial breeding design within two allopatric populations of Atlantic salmon (Salmo salar). Maternal environmental effects were large at early life stages, but decreased during development, with non-additive genetic effects being most significant at later juvenile stages (alevin and fry). Non-additive genetic effects w

SUBMITTER: Houde AL 

PROVIDER: S-EPMC3833687 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature