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Provedor de dados:  PAB
País:  Brazil
Título:  Candidate SNPs for carcass and meat traits in Nelore animals and in their crosses with Bos taurus
Autores:  Curi,Rogério Abdallah
Krauskopf,Monique Marcondes
Hadlich,Janaína Conte
Fortes,Marina Rufino Salinas
Vankan,Dianne Margaret
Silva,Josineudson Augusto II Vasconcelos
Oliveira,Henrique Nunes de
Mota,Marcílio Dias Silveira da
Data:  2012-02-01
Ano:  2012
Palavras-chave:  Bos indicus
Candidate gene
Fat deposition
Meat tenderness
Resumo:  The objective of this work was to evaluate the effects of single-nucleotide polymorphisms (SNPs) in the genes IGF1 (AF_017143.1:g.198C>T), MSTN (AF_320998.1:g.433C>A), MYOD1 (NC_007313:g.1274A>G) and MYF5 (NC_007303:g.1911A>G) on carcass and meat traits in Nelore (Bos indicus) and Nelore x B. taurus. A total of 300 animals were genotyped and phenotyped for rib eye area (REA), backfat thickness (BT), intramuscular fat (IF), shear force (SF) and myofibrillar fragmentation index (MFI). The effects of allele substitution for each SNP were estimated by regression of the evaluated phenotypes on the number of copies of a particular allele using the general linear model. The polymorphism at IGF1 was non-informative in Nelore animals. In crossbred animals, the IGF1 C allele was associated with greater REA. However, this relation was not significant after Bonferroni correction for multiple testing. The A allele of the MSTN polymorphism was absent in Nelore cattle and was only found in two crossbred animals. The polymorphisms of MYOD1 and MYF5 were little informative in Nelore animals with G allele frequency of 0.097 and A allele frequency of 0.031, respectively. These markers show no association with the analyzed traits in the total sample of evaluated animals.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira
Relação:  10.1590/S0100-204X2012000200019
Formato:  text/html
Fonte:  Pesquisa Agropecuária Brasileira v.47 n.2 2012
Direitos:  info:eu-repo/semantics/openAccess

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