畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (7): 1084-1090.doi: 10.11843/j.issn.0366-6964.2014.07.008

• 遗传繁育 • 上一篇    下一篇

绵羊脑、卵巢源EST-SSR标记与产羔数、初生重的关联性分析

张文祥,王遵宝,赵宗胜*,李大全*,贾斌,努尔力•阿不力孜   

  1. (石河子大学动物科技学院,石河子 832003)
  • 收稿日期:2013-12-27 出版日期:2014-07-23 发布日期:2014-07-23
  • 通讯作者: 赵宗胜,教授,E-mail:zhaozongsh@shzu.edu.cn;李大全,教授,E-mail:lidaquan37@163.com
  • 作者简介:张文祥(1983-),男,山东潍坊人,博士生,主要从事绵羊育种研究,E-mail:zwx9306@163.com
  • 基金资助:

    科技部国际科技合作项目(2007DFB30420);国家自然科学基金项目(31160444)

Correlation Analysis of Ovine Brain and Ovary Derived EST-SSR Markers with Litter Size and Birth Weight

ZHANG Wen-xiang,WANG Zun-bao,ZHAO Zong-sheng*,LI Da-quan*,JIA Bin,NULY Ablez   

  1. (College of Animal Science and Technology,Shihezi University,Shihezi 832003,China)
  • Received:2013-12-27 Online:2014-07-23 Published:2014-07-23

摘要:

为了筛选与绵羊产羔数和初生重基因座紧密连锁的分子标记。本研究选择6个多态性丰富的绵羊脑、卵巢源EST-SSR位点,检测了德国美利奴与中国美利奴杂交F2代196只母羊的遗传多态性,分析了分子标记与产羔数、初生重的关联性。结果表明:6对绵羊脑、卵巢源EST-SSR多态位点在该群体中共检测到23个等位基因,群体杂合度在0.585 1~0.776 6,PIC值均大于0.5,属于高度多态位点,其中114719622、114720463和114722561位点的基因型分布处于哈代温伯格平衡状态。与产羔数、初生重关联分析表明:6个EST-SSR标记位点不同基因型间达到了显著(P<0.05)或极显著水平(P<0.01),114719418位点与羔羊平均初生重和总初生重关联;114720463和114758122位点分别与羔羊总初生重、产羔数关联;114719622和114722561位点与总初生重关联;47952182位点与产羔数关联。综上表明:6个EST-SSR标记位点可能与控制绵羊初生重、产羔数的基因座紧密连锁。

Abstract:

The purpose of this research was to find microsatellite markers stronger linked to litter size and birth weight of sheep.Six polymorphic Ovine brain and ovary derived EST-SSR loci were measured in 196 F2 animals from a German Merino×Chinese Merino sheep,then the genetic polymorphism of group and the correlation between microsatellite markers and litter size and birth weight were analyzed.The results showed that the loci had rich polymorphism and 23 alleles were detected among 6 loci in the group.The range of heterozygosity(H) was 0.585 1 to 0.776 6,and the polymorphism information content of all loci (PIC) were higher than 0.5.114719622,114720463,114722561 loci were eligible for Hardy-weinberg equilibrium.The results indicated that 6 loci had significant effect on birth weight and litter size.The locus of 114719418 related with average birth weight and total birth weight,114720463 and 114758122 loci with total birth weight and litter size,114719622 and 114722561 loci with total birth weight,47952182 locus with litter size.It is suggested that these 6 loci probable had high linkage with genetic locus of litter size and birth weight traits.

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