Genomic dissection of maternal, additive and non-additive genetic effects for growth and carcass traits in Nile tilapia by Rajesh Joshi, Theo H. E. Meuwissen, John A. Woolliams, Hans M. Gjøen

“…For the first time, the magnitude of inbreeding depression for important commercial traits in Nile tilapia was estimated by using genomic data. Results The study estimated the non-additive genetic variance in a Nile tilapia population of full-sib families and, when present, it was almost entirely represented by additive-by-additive epistatic variance, although in pedigree studies this non-additive variance is commonly assumed to arise from dominance. …”
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