Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/41905
Título: Candidate genes for production traits in Nelore beef cattle
Palavras-chave: Polymorphisms
Insulin-like growth factor
Bos indicus
Yearling weight
Data do documento: 3-Dez-2012
Editor: Fundação de Pesquisas Científicas de Ribeirão Preto (FUNPEC-RP)
Citação: TIZIOTO, P. C. et al. Candidate genes for production traits in Nelore beef cattle. Genetics and Molecular Research, Ribeirão Preto, v. 11, n. 4, p. 4138-4144, Dec. 2012. DOI: 10.4238/2012.September.19.1.
Resumo: Meat quality is an important trait for the beef industry. Backfat thickness, ribeye area, and shear force are traits measured late in life, and the investigation of molecular markers associated with these traits can help breeding programs. In cattle, some polymorphisms have been related to production traits. Thus, the purpose of this study was to assess the presence of polymorphisms in the candidate genes insulin-like growth factor 1 (IGF1), fatty acid-binding protein 4 (FABP4), and peroxisome proliferative active receptor gamma coactivator 1 A (PPARGC1A) and associate them with production traits in reference families of Nelore cattle. We used 270 steers descendent from 20 sires that were chosen to represent variability in this breed. The investigation of marker effects on the traits was performed using a mixed model under the restricted maximum likelihood method. A significant allele substitution effect was found for IGF1 and yearling weight (P ≤ 0.017). The mean allele substitution effect was 6.9 kg, with the 229 allele associated with reduced yearling weight in this Nelore population. Meat quality is an important trait for the beef industry. Backfat thickness, ribeye area, and shear force are traits measured late in life, and the investigation of molecular markers associated with these traits can help breeding programs. In cattle, some polymorphisms have been related to production traits. Thus, the purpose of this study was to assess the presence of polymorphisms in the candidate genes insulin-like growth factor 1 (IGF1), fatty acid-binding protein 4 (FABP4), and peroxisome proliferative active receptor gamma coactivator 1 A (PPARGC1A) and associate them with production traits in reference families of Nelore cattle. We used 270 steers descendent from 20 sires that were chosen to represent variability in this breed. The investigation of marker effects on the traits was performed using a mixed model under the restricted maximum likelihood method. A significant allele substitution effect was found for IGF1 and yearling weight (P ≤ 0.017). The mean allele substitution effect was 6.9 kg, with the 229 allele associated with reduced yearling weight in this Nelore population.
URI: https://www.geneticsmr.com/articles/1868
http://repositorio.ufla.br/jspui/handle/1/41905
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