Data/hora: 11/06/2024 19:13:22

Provedor de dados: | 86
País: | Brazil
Título: | Polymorphisms in candidate genes and their association with carcass traits and meat quality in Nellore cattle
Autores: | Borges,Bárbara Oliveira; Curi,Rogério Abdallah; Baldi,Fernando; Feitosa,Fabieli Loise Braga; Andrade,Willian Bruno Fernandes de; Albuquerque,Lucia Galvão de; Oliveira,Henrique Nunes de; Chardulo,Luis Artur Loyola.
Data: | 2014-05-01
Ano: | 2014
Palavras-chave: | Bos indicus; Ankyrin; Assisted selection; Beef cattle; Myogenin; Titin.
Resumo: | The objective of this work was to estimate the allele polymorphism frequencies of genes in Nellore cattle and associate them with meat quality and carcass traits. Six hundred males were genotyped for the following polymorphisms: DGAT1 (VNTR with 18 nucleotides at the promoter region); ANK1, a new polymorphism, identified and mapped here at the gene regulatory region NW_001494427.3; TCAP (AY428575.1:g.346G&gt;A); and MYOG (NW_001501985:g.511G&gt;C). In the association study, phenotype data of hot carcass weight, ribeye area, backfat thickness, percentage of intramuscular fat, shear force, myofibrillar fragmentation index, meat color (L*, a*, b*), and cooking losses were used. Allele B from the ANK1 gene was associated with greater redness (a*). Alleles 5R, 6R, and 7R from the DGAT1 VNTR gene were associated with increased intramuscular fat, reduced cooking losses and increased ribeye area, respectively. The single nucleotide polymorphism (SNP) of the TCAP gene was not polymorphic, and MYOG alleles were not associated with any of the evaluated characteristics. These results indicate that ANK1 and DGAT1 genes can be used in the selection of Nellore cattle for carcass and meat quality.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000500364

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2014000500006
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.49 n.5 2014
Fonte: | info:eu-repo/semantics/openAccess