Authors : Liu Guifen, Wan Fachun, Song Enliang, Liu Xiaomu, Tan Xiuwen and Cheng Haijian
Abstract: This study investigated the effects of four SNP in exon 3 of myostatin gene on growth, carcass and beef quality traits in China. A total four SNPS (A→C, C→T, G→A, C→A) were detected among the 117 sequenced individuals. The experiment used four crossed breeds include the Limousin cattle x Luxi yellow cattle (LL), Simmental cattle x Luxi yellow cattle (SL), Charolais cattle x Simmental cattle x Luxi yellow cattle (CSL), Limousin cattle x Simmental cattle x Luxi yellow cattle (LSL). In addition, research group also included Qinchuan cattle (Chinese local breed) and one unidentified breeds. The results showed that there are no differences in all detected traits wherever between breed or within breed of different genotype in four mutative sites. However, there are dominant differences between breeds under without considering genotype circumstance. The results provided strong evidence that three mutative site in exon 3 of MSTN might be some invalid mutation to the researched groups. However, the body measurement, growth and carcass traits have dominant difference in all breeds.
Liu Guifen, Wan Fachun, Song Enliang, Liu Xiaomu, Tan Xiuwen and Cheng Haijian, 2014. SNP Identification and Analysis in Part of Exon 3 of Beef Cattle MSTN Gene and Variation among Breeds. Journal of Animal and Veterinary Advances, 13: 174-177.