›› 2013, Vol. ›› Issue (5): 161-165.

• 遗传繁育 • 上一篇    下一篇

猪钙蛋白酶抑制蛋白基因外显子9多态性检测及其对山西白猪背膘厚的影响

赵先萍1, 黎威2, 王彦玲2, 贺晓丽2, 高鹏飞2, 郭晓红2, 李步高2, 曹果清2   

  1. 1. 山西省畜牧兽医学校, 山西太原 030024;
    2. 山西农业大学动物科技学院, 山西太谷 030801
  • 收稿日期:2012-09-24 出版日期:2013-05-20 发布日期:2013-05-27
  • 通讯作者: 曹果清(1971-),女,博士,教授,主要从事动物遗传育种与繁殖方面的研究。E-mail:anniecao710502@yahoo.com.cn E-mail:anniecao710502@yahoo.com.cn
  • 作者简介:赵先萍(1970-),女,山西人,硕士,讲师,主要从事动物遗传育种方面的教学与科研工作。黎威(1988-),男,湖北人,硕士生,研究方向:分子遗传学与动物育种。赵先萍和黎威对本文具有同等贡献,并列为第一作者。
  • 基金资助:
    山西省科技攻关项目(991016,021043,20080311031);山西省留学人员科技活动择优资助项目(614193);山西省高等学校优秀青年学术带头人支持计划;山西省大学生科技创新项目。

Study on the Polymorphisms of CAST Gene Exon 9 and its Effect on Backfat Thickness in Shanxi White Pig

ZHAO Xian-ping1, LI Wei2, WANG Yan-ling2, HE Xiao-li2, GAO Peng-fei2, Guo Xiao-hong2, LI Bu-gao2, CAO Guo-qing2   

  1. 1. School of Animal Husbandry and Veterinary Medicine of Shanxi Province, Taiyuan 030024, China;
    2. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
  • Received:2012-09-24 Online:2013-05-20 Published:2013-05-27

摘要: 本研究采用PCR-SSCP方法检测了杜洛克猪、大白猪、长白猪、山西白猪、山西黑猪和马身猪6个品种共416头个体的钙蛋白酶抑制蛋白(calpastatin,CAST)基因外显子9的多态性,在扩增片段内检测到5个SNPs,分别是第37位的T→G突变、150位的A→G突变、167、193和256位点的C→T突变,其中第193和256位点的C→T突变位于外显子9内,为错义突变,分别引起苏氨酸→异亮氨酸和苏氨酸→蛋氨酸的转变;5个SNPs位点形成A、B、C、D、E、F和G 7种单倍型,其分布与猪的经济类型相一致。在引入猪种大白猪和杜洛克猪群体中,有3种单倍型A、B和C,单倍型B频率较高,分别为0.40和0.53;长白猪群体中只有B和C 2种单倍型,单倍型C频率较高,为0.72;马身猪除含有A、B、C 3种单倍型外,还含有单倍型E,频率为0.16。统计分析结果表明,CAST基因单倍型类型对山西白猪6月龄活体背膘厚无显著影响。

关键词: 猪; PCR-SSCP; 钙蛋白酶抑制蛋白基因; 背膘厚

Abstract: A total of 416 pigs from Duroc, Large White, Landrace, Shanxi White, Shanxi Black and Mashen were used to detect the polymorphisms of calpastatin (CAST) gene exon 9 by PCR- SSCP. Five SNPs were detected in the amplified region, which were T37G, A150G, C167T, C193T, and C256T, of them, the mutations of C193T and C256T located in the CAST gene exon 9 were missense mutation, which gave rise to the changes from threonine to isoleucine and from threonine to methionine, respectively. Seven haplotypes of A, B, C, D, E, F and G were detected in the examined populations. The distributions of the haplotypes in different pig breeds were anastomosed with the pig economic types. There were three haplotypes of A, B and C in the imported pigs of Large White and Duroc, and the frequency of haplotype B was greater than those of A and C, which were 0.40 in Large White and 0.53 in Duroc. Only two haplotypes of B and C were detected in Landrace, the frequency of haplotype C was greater than that of haplotype of B. Except of the haplotypes of A, B, and C, a new haplotype of E was detected in Mashen pig population, the frequency was 0.16. The haplotypes had no significant effect on the backfat thickness measured alive in Shanxi White pigs.

Key words: pig; PCR-SSCP; calpastatin gene; backfat thickness

中图分类号: