Effects of common full-sib families on accuracy of genomic prediction for tagging weight in striped catfish Pangasianodon hypophthalmus

• DOI: 10.3389/fgene.2022.1081246
• Publication Date: 2023-01-04T06:01:58Z
• Authors: Nguyen Thanh Vu; Tran Huu Phuc; Nguyen Hong Nguyen; Nguyen Van Sang
• Keywords: Genomic Selection

Common full-sib families (c2 ) make up a substantial proportion of total phenotypic variation in traits commercial importance aquaculture species and omission or inclusion the c2 resulted possible changes genetic parameter estimates re-ranking estimated breeding values. However, impacts common on accuracy genomic prediction for economic are not well known many species, including aquatic animals. This research explored tagging weight population striped catfish comprising 11,918 fish traced back to base (four generations), which 560 individuals had genotype records 14,154 SNPs. Our single step best linear unbiased (ssGLBUP) showed that was reduced by 96.5%-130.3% when were included statistical models. The reduction smaller extent multivariate analysis than univariate Imputation missing genotypes somewhat upward biases weight. It is therefore suggested evaluation models recorded during early phase growth development should account minimise hence, selection response.