中国畜牧兽医2017，Vol.44Issue(6)：1778-1783,6.DOI:10.16431/j.cnki.1671-7236.2017.06.028
绵羊MyoG基因外显子1的多态性及其与肉质性状的关联分析
Polymorphism of MyoG Gene Exon 1 and Its Association Analysis with Meat Quality Traits in Sheep
摘要
Abstract
Myogenin (MyoG) gene plays a central regulatory role in the process of muscle cell differentiation, which directly affects meat production capacity of animal.In this study, 6 sheep varieties including Large-tail Han sheep, Small-tail Han sheep, Yuxizhiwei sheep, Lanzhou fat-tailed sheep, Mongolia sheep and Tong sheep were selected as experimental materials to detect the polymorphism of MyoG gene exon 1 by non denaturing polyacrylamide gel electrophoresis, and analyze the association analysis between the polymorphism of MyoG gene exon 1 and meat quality traits in sheep.The results showed that 2 alleles (A, B) and 3 genotypes (AA, BB, AB) were detected in MyoG gene exon 1 of six sheep populations.The A allele frequency in Small-tail Han sheep, Large-tail Han sheep, Yuxizhiwei sheep, Lanzhou fat-tailed sheep, Mongolia sheep and Tong sheep were 0.5167, 0.2500, 0.4375, 0.6500, 0.5750 and 0.7125, respectively, the B allele frequency of six sheep populations were 0.4833, 0.7500, 0.5625, 0.3500, 0.4250 and 0.2875, respectively.MyoG gene exon 1 mainly affected the moisture and color of mutton, the moisture content of BB genotype was significantly higher than that of AB genotype (P<0.01) and AA genotype (P<0.05).The color of AB genotype was significantly higher than that of BB genotype (P<0.01) and AA genotype (P<0.05).关键词
绵羊/肌细胞生成素基因/肉质性状/关联分析Key words
sheep/MyoG gene/meat quality traits/association analysis分类
农业科技引用本文复制引用
白俊艳,杨又兵,王玉琴,庞有志,王旭,杨帅,王欢玲..绵羊MyoG基因外显子1的多态性及其与肉质性状的关联分析[J].中国畜牧兽医,2017,44(6):1778-1783,6.基金项目
本研究由"十三五"国家现代肉羊产业技术体系(CARS-39) （CARS-39）
国家星火计划项目(2015GA750002) （2015GA750002）
