Artigo
Association of MYF5 gene allelic variants with production traits in pigs
Autor
Carmo, Fausto Moreira da Silva
Guimarães, Simone Eliza Facioni
Lopes, Paulo Sávio
Pires, Aldrin Vieira
Guimarães, Marta Fonseca Martins
Silva, Marcos Vinícius Gualberto Barbosa da
Schierholt, Alex Sandro
Silva, Kleibe de Moraes e
Gomide, Lúcio Alberto de Miranda
Institución
Resumen
We studied the phenotypic effects of polymorphisms at the MYF5 gene in a divergent F2 swine population and found that one polymorphism was due to an insertion and another to a deletion. The genotypes of 359 F2 animals were obtained and the Normal/Normal (NN) and Normal/Insertion (NI) genotypes analyzed to determine associations with phenotypic data for performance, carcass and meat quality traits. Significant differences were observed (p < 0.05) between NN and NI animals for drip (NN = 3.14 ± 1.56; NI = 3.69 ± 2.78%), cooking (NN = 32.26 ± 2.41; NI = 33.21 ± 2.31%) and total loss (NN = 34.16 ± 2.63 and NI = 34.97 ± 2.08%). The Deletion marker was not statistically tested. The results indicate that the allelic variant Insertion is associated with a deleterious effect on meat quality traits and should be monitored in marker assisted selection programs.