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https://locus.ufv.br//handle/123456789/12142
Tipo: | Artigo |
Título: | Estimating additive and dominance variances for complex traits in pigs combining genomic and pedigree information |
Autor(es): | Costa, E.V. Diniz, D.B. Veroneze, R. Resende, M.D.V. Azevedo, C.F. Guimaraes, S.E.F. Silva, F.F. Lopes, P.S. |
Abstract: | Knowledge of dominance effects should improve ge-netic evaluations, provide the accurate selection of purebred animals, and enable better breeding strategies, including the exploitation of het-erosis in crossbreeds. In this study, we combined genomic and pedi-gree data to study the relative importance of additive and dominance genetic variation in growth and carcass traits in an F2 pig population. Two GBLUP models were used, a model without a polygenic effect (ADM) and a model with a polygenic effect (ADMP). Additive effects played a greater role in the control of growth and carcass traits than did dominance effects. However, dominance effects were important for all traits, particularly in backfat thickness. The narrow-sense and broad-sense heritability estimates for growth (0.06 to 0.42, and 0.10 to 0.51, respectively) and carcass traits (0.07 to 0.37, and 0.10 to 0.76, respec-tively) exhibited a wide variation. The inclusion of a polygenic effect in the ADMP model changed the broad-sense heritability estimates only for birth weight and weight at 21 days of age. |
Palavras-chave: | Dominance Genetic Parameters Polygenic effect Piau pigs |
Editor: | Genetics and Molecular Research |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.4238/2015.June.11.4 http://www.locus.ufv.br/handle/123456789/12142 |
Data do documento: | 11-Jun-2015 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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gmr5206.pdf | texto completo | 866,04 kB | Adobe PDF | Visualizar/Abrir |
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