Premium
Genetic architecture and maternal contributions of early‐life survival in lake trout Salvelinus namaycush
Author(s) -
Houde A. L. S.,
Wilson C. C.,
Pitcher T. E.
Publication year - 2016
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12965
Subject(s) - salvelinus , biology , trout , maternal effect , selection (genetic algorithm) , zoology , genetic architecture , embryo , salmonidae , additive genetic effects , ecology , phenotype , evolutionary biology , fishery , fish <actinopterygii> , genetics , heritability , salmo , pregnancy , offspring , gene , artificial intelligence , computer science
The influences of additive, non‐additive and maternal effects on early survival (uneyed embryo survival, eyed embryo survival, alevin survival and overall survival to first feeding) were quantified in lake trout Salvelinus namaycush using a 7 × 7 full‐factorial breeding design. Maternal effects followed by non‐additive genetic effects explained around one third of the phenotypic variance of the survival traits. Although the amount of additive genetic effects were low (<1%), suggesting a limited potential of the traits to respond to new selection pressures, how maternal and non‐additive genetic effects may respond to selection under certain circumstances are discussed.