Artigo
Assessment of GH1, CAPN1 and CAST polymorphisms as markers of carcass and meat traits in Bos indicus and Bos taurus-Bos indicus cross beef cattle
Fecha
2010-12-01Registro en:
Meat Science. Oxford: Elsevier B.V., v. 86, n. 4, p. 915-920, 2010.
0309-1740
10.1016/j.meatsci.2010.07.016
WOS:000283456300005
5593441035110683
9820754011277263
3514713413919126
0000-0001-6289-0406
Autor
Universidade Estadual Paulista (Unesp)
Resumen
The objective of this study was to investigate the effects of bovine GH1, CAPN1 and CAST gene polymorphisms on carcass and meat traits in Nellore and Nellore x Bos taurus beef cattle. Three hundred animals were genotyped for GH1/Mspl (TC/G in intron 3), CAPN316 (AF_252504.2:g.5709C>G) and CAST/Rsal (AY_008267.1:g282C>G) and phenotyped for rib eye area, backfat thickness, intramuscular fat, shear force (SF). and myofibrillar fragmentation index (MFI). No significant associations were observed between the GH1/Mspl and CAST/Rsal polymorphisms and phenotypes, although the relation between the CAST/Rsal genotypes and meat tenderness evaluated by MFI approached significant. The fact that the CAPN316 polymorphism did not show adequate segregation in Nellore cattle confirms the difficulty of using this marker in breeding programs of different Bos indicus breeds. However, the positive results of the association analysis obtained for Nellore x B. taurus crosses contributed to the validation of previous findings. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.