FADS2基因 c.1571 A>G 突变对中国荷斯坦牛泌乳性状的影响  

Effects of c.1571 A>G Mutation of Fatty Acid Desaturase 2 (FADS2) on Lactation Traits of Chinese Holstein Cows

作　　者：王梦琦[1] 倪炜[1] 唐程 郭佳禾 张强 梁艳 张慧敏[1] 李明勋 毛永江[1] WANG Meng-qi;NI Wei;TANG Cheng(College of Animal Science and Technology,Yangzhou University,Yangzhou,Jiangsu 225009)

机构地区：[1]扬州大学动物科学与技术学院

出　　处：《安徽农业科学》2019年第10期92-93,115,共3页Journal of Anhui Agricultural Sciences

基　　金：扬州大学研究生科研创新计划项目(XKYCX18_097);江苏省高校自然科学研究重大项目(18KJA230003);江苏省“六大人才高峰”项目(NY-093);江苏省农业自主创新基金项目(CX(17)1005)

摘　　要：[目的]探索FADS2基因c.1571A>G多态性对中国荷斯坦牛泌乳性状的影响。[方法]对866头中国荷斯坦牛FADS2基因c.1571A>G位点进行多态性分析,采用最小二乘法分析其对泌乳性状的影响。[结果]FADS2c.1571A>G对日产奶量、乳蛋白率、乳脂率、总固形物以及尿素氮含量等泌乳性状有显著影响(P<0.05)。GG基因型个体具有较高的日产奶量,而AA型个体的乳脂率、乳蛋白率及总固形物含量显著高于其他基因型个体。FADS2c.1571A>G突变对体细胞评分(SCS)无显著影响(P>0.05)。[结论]FADS2可作为优化中国荷斯坦牛泌乳性能的潜在分子标记。[Objective]To explore the effects of c.1571 A>G polymorphism of FADS2 gene on the lactation traits of Chinese Holstein cows.[Method] The single nucleotide polymorphisms(SNPs) of c.1571 A>G mutation of FADS2 gene in Chinese Holstein cows(n=866) were analyzed,and their effects on the lactation traits of Chinese Holstein cows were analyzed by using least square method.[Result] c.1571 A>G mutation of FADS2 gene had significant effects on daily milk yield,milk protein content,milk fat content,total solids and urea nitrogen content,and other milk production traits(P<0.05). The individuals with GG genotype had significantly higher daily milk yield,while the individuals with AA genotype had significantly higher milk fat content,milk protein content and content of total solids.FADS2 c.1571 A>G mutation had no significant effect on SCS.[Conclusion] FADS2 could be used as the potential molecular markers for improving the lactation performance of Chinese Holstein cows.

关 键 词：FADS2 c.1571A>G 体细胞评分 泌乳性状 

分 类 号：S813.1[农业科学—畜牧学]