Genetic Polymorphism of MyoG Gene and its Relationship with Meat Quality Traits in Chinese Cattle Population
In this study, we determined the associations between gene-specific single nucleotide polymorphisms (SNP) in MyoG gene, its association with meat quality characteristics and to evaluate the allelic and genotypic frequencies of five native Chinese cattle breeds.The breeds were Jiaxian red(JXR), Luxi (LX), Nan-yang (NY), Qinchuan (QC), Xia-Nan (XN).Their was a transition of G→ A at position 965 in intron 1 of the MyoG gene in cattle, that causedthe substitution (965Argnine/965Glanine).The G965A SNP was significantly associated with water holding capacity and meat tenderness (P <0.05) while no effect of genotype on back fat thickness, rib area, loin eye height, eye muscle width and marbling was disclosed (P>0.05).The x2-test revealed that the genotype distributions among four cattle breeds (JXR, LX, NY and QC) agreed with Hardy-Weinberg equilibrium (P > 0.05), although one breed (XN) was not in Hardy-Weinberg equilibrium (P < 0.01).We concluded that G965A SNP can be used as an efficacious genetic marker for meat quality traits in Chinese cattle but a much large number of animals are required for Marker assisted selection.
Chinese cattle genotypic frequencies Myogenin (MyoG) gene meat quality Single nucleotide polymorphism
J.A.Ujan L.S.Zan Shengjuan Wei H.B.Wang H.C.Wang S.A.Ujan
College of Animal Science and Technology, Northwest A& F University, 712100,Yangling, Shaanxi, P.R.C College of Animal Science and Technology, Northwest A& F University, 712100,Yangling, Shaanxi, P.R.C Government Sachal Sarmast College Ranipur, Shah Abdul Latif University, Khairpur, Sindh, Pakistan
国内会议
陕西杨凌
英文
159-167
2011-05-01（万方平台首次上网日期，不代表论文的发表时间）