Estimating heritability using family-pooled phenotypic and genotypic data: a simulation study applied to aquaculture.

ABSTRACT: Estimating heritability based on individual phenotypic and genotypic measurements can be expensive and labour-intensive in commercial aquaculture breeding. Here, the feasibility of estimating heritability using within-family means of phenotypes and allelic frequencies was investigated. Different numbers of full-sib families and family sizes across ten generations with phenotypic and genotypic information on 10 K SNPs were analysed in ten replicates. Three scenarios, representing differing numbers of pools per family (one, two and five) were considered. The results showed that using one pool per family did not reliably estimate the heritability of family means. Using simulation parameters appropriate for aquaculture, at least 200 families of 60 progeny per family divided equally in two pool

SUBMITTER: Khalilisamani N 

PROVIDER: S-EPMC8897491 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature