›› 2013, Vol. 40 ›› Issue (6): 146-152.

• 遗传繁育 • 上一篇    下一篇

5个黑山羊品种(群体)微卫星标记的遗传多样性研究

武志娟1, 陈明华2, 万洁2, 韦雷飞2, 钟金城1, 李娜1, 姜雪鸥1   

  1. 1. 西南民族大学, 动物遗传育种学国家民委-教育部重点实验室, 四川成都 610041;
    2. 攀枝花市农林科学研究院, 四川攀枝花 617061
  • 收稿日期:2012-10-26 出版日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: 万洁 E-mail:wanjie821209@163.com
  • 作者简介:武志娟(1984-),女,河南人,硕士生,研究方向:基因组与生物信息学。
  • 基金资助:
    攀枝花市重点产业科技支撑项目(2010CY-N-1)。

Genetic Diversity among Five Black Goat Breeds(Populations) Based on Microsatellite Analysis

WU Zhi-juan1, CHEN Ming-hua2, WAN Jie2, WEI Lei-fei2, ZHONG Jin-cheng1, LI Na1, JIANG Xue-ou1   

  1. 1. Key Laboratory of Animal Genetics and Breeding of State Ethnic Affairs Commission Ministry of Education, Southwest University for Nationalities, Chengdu 610041, China;
    2. The Academy of Agriculture and Forestry Science of Panzhihua City, Panzhihua 617061, China
  • Received:2012-10-26 Online:2013-06-20 Published:2013-06-20

摘要: 利用14个微卫星标记分析了攀枝花地方黑山羊、建昌黑山羊、云岭黑山羊、金堂黑山羊、乐至黑山羊5个品种(群体)的遗传多样性及亲缘关系。结果显示,14个微卫星座位多态信息含量(PIC)在0.5129~0.7646之间,均为高度多态位点;5个黑山羊品种(群体)的平均多态信息含量(PIC)为0.6405~0.6856,平均杂合度(H)在0.6985~0.7371之间,说明遗传多样性丰富;群体间平均遗传分化系数(Fst)为0.0296,说明群体间的变异仅为2.96%,群体间存在基因交流;攀枝花黑山羊和金堂黑山羊2个群体之间的Nei氏遗传距离最大(D=0.1286),金堂黑山羊和乐至黑山羊之间的遗传距离最小(D=0.0365);NJ聚类图中,攀枝花黑山羊、建昌黑山羊和云岭黑山羊聚为一类,金堂黑山羊和乐至黑山羊聚为一类,聚类结果与群体的地理分布较为一致。

关键词: 黑山羊; 微卫星; 遗传多样性

Abstract: Genetic diversity for Pangzhihua Black goat (PZH) and other four black goat breeds(populations),including Janchang Black goat (JC),Yunling Black goat (YL),Jintang Black goat (JT), Lezhi Black goat (LZ). We reestimated using fourteen microsatellite makers by PCR, polyacrylamide gel electrophoresis, and silver staining of modified Sanguintti method. The results showed that all of the microsatellites were highly polymorphic loci,the polymorphic information content (PIC) varied from 0.5129 to 0.7646. Each of the five breeds(populations) possesses had a high level of genetic variability, the PIC and the mean heterozygosity (H) varied from 0.6405 to 0.6856 and 0.6985 to 0.7371,respectively. But the Wright’s F-statistics of subpopulation within total (Fst) showed a low mean value 0.0296,suggesting the variation between populations was only 2.96% share and gene flow was exist among groups. Nei’s genetic distances (D) were calculated, which varied from 0.0365 (between JT and LZ) to 0.1286(between PZH and JT). In the NJ cluster analysis, PZH, JC and YL could be separated to one cluster, JT and LZ to the other. Additionally, the result displayed a remarkable degree of consistency with their different geographical origins.

Key words: Black goat; microsatellite; genetic diversity

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