小尾寒羊及其杂交子一代中FecB基因的遗传结构分析  

Genetic Structure Analysis on FecB Gene of Small-tail Han Sheep and F_1

作　　者：卡那提.沙力克 侯广田[2] 王琼[1] 刘玲玲[1] 刘武军[1] 王文奇[2] 罗永明[2] 

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]新疆畜牧科学院畜牧研究所,乌鲁木齐830000

出　　处：《新疆农业科学》2014年第7期1361-1366,共6页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区高技术研究发展项目"新疆绵羊品种主要经济性状功能基因的鉴定"(201111115);新疆维吾尔自治区重大专项(201230116)

摘　　要：【目的】比较小尾寒羊及其不同杂交组合后代在繁殖性能方面的差异,以期为寻找一种较理想的杂交组合提供前期基础和科学依据。【方法】试验以小尾寒羊自繁群HH及其3个杂交F_1代群体(小尾寒羊×多浪羊(HDL)、小尾寒羊×萨福克(HS)、小尾寒羊×德国美利奴(HDM)为研究对象,对不同绵羊群体中FecB基因进行多态性检测,分析其遗传结构。【结果】在HH、HDL群体中存在三种基因型BB、B+、++,在HDM和HS群体中存在两种基因型B+、++,表明杂交群体HDM和HS已成功引入多胎基因FecB。【结论】以小尾寒羊作为母本,对于改善杂交子代的繁殖性能具有积极作用。[Objective] The purpose of this project is to provide primary foundation and technical support for choosing hybrid combination in sheep by comparing differences of reproductive perfornanee between Small -tail Han sheep and different F1.[Method] In this study,Small-tail Han sheep （HH）,F1 of Small-tail Han sheep and Duolang sheep （HDL）,F1 of Small-tail Han sheep and Suffolk （HS）,F1 of Small-tail Han sheep and German merino （HDM） were used for the main research objects.The polymorphism of FecB gene was detected to analyze its genetic structure analysis in different sheep groups.[Result] F1 of HH and HDL,FecB gene had three kinds of genotype：＋ ＋,B ＋ and BB ; F1 of HDM and HS,FecB gene had two kinds of genotype：＋ ＋ and B ＋.These showed that HDM and HS had successfully introduced FecB gene.[Conclusion] Small-tail Han sheep as female parent,played a positive role in improving the reproductive performance of hybrid combinations.

关 键 词：小尾寒羊 F1 FECB 繁殖性能 杂交组合 

分 类 号：S826.2[农业科学—畜牧学]