Genetic architecture and maternal contributions of early-life survival in lake trout Salvelinus namaycush
Journal of Fish Biology
additive genetic effects, genetic architecture, maternal effects, non-additive genetic effects
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.
Houde, Aimee Lee S.; Wilson, C. C.; and Pitcher, Trevor E., "Genetic architecture and maternal contributions of early-life survival in lake trout Salvelinus namaycush" (2016). Journal of Fish Biology, 88, 5, 2088-2094.