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林业科学 ›› 2013, Vol. 49 ›› Issue (11): 103-108.doi: 10.11707/j.1001-7488.20131114

• 论文与研究报告 • 上一篇    下一篇

褐马鸡圈养种群ISSR标记的遗传多样性

武玉珍1, 冯睿芝2   

  1. 1. 晋中学院生物科学与技术学院 晋中 030600;
    2. 复旦大学生物医学研究院 上海 200032
  • 收稿日期:2013-08-25 修回日期:2013-08-27 出版日期:2013-11-25 发布日期:2013-11-26

ISSR Analysis of Genetic Diversity of Two Brown-Eared Pheasant (Crossoptilon mantchuricum) Populations

Wu Yuzhen1, Feng Ruizhi2   

  1. 1. School of Biology Science and Technology, Jinzhong University Jingzhong 030600;
    2. Institute of Biomedical Sciences, Fudan University Shanghai 200032
  • Received:2013-08-25 Revised:2013-08-27 Online:2013-11-25 Published:2013-11-26

摘要:

利用ISSR分子标记技术对褐马鸡庞泉沟国家自然保护区与太原市动物园2个种群的遗传多样性进行研究。从20个ISSR引物中筛选出10个引物对褐马鸡2个种群的35个样品进行扩增,得到65个清晰的扩增位点,多态带百分率(PPB)为76.9%。2个种群的多态带百分率和群体内遗传多样性指数分别为54.10%,54.10%,0.302 5,0.205 6,前者遗传多样性略高于后者。2个种群间的遗传分化系数(Gst)、基因流估计值(Nm)、遗传相似性系数以及遗传距离均表明种群间的遗传分化较小。褐马鸡UPGMA 系统树无明显的歧化,尚未表现出遗传趋异。褐马鸡2个种群间的遗传多样性指数比较接近,遗传多样性水平较低,核基因组与过去线粒体基因组遗传多样性的研究结果基本一致。

关键词: 褐马鸡, 濒危物种, 圈养, ISSR, 遗传多样性

Abstract:

Brown-eared Pheasant (Crossoptilon mantchuricum) is a critically endangered endemic species, which is listed in the national first-class protected birds in China. In this study, ISSR markers were used to investigate the genetic diversity of two populations of Brown-eared Pheasant in the Pangquangou Nature Reserve and Taiyuan Zoo. Ten primers out of 20 ISSR primers were selected for amplifying 35 samples of the two populations, and 65 clear amplification sites (PPB=76.9%) were obtained.The percentage of polymorphic bands of the two populations was around 54.10%.Shannon's Information Index of the two populations was 0.302 5 and 0.205 6, respectively. The generic heterogeneity (Gst), genetic flow (Nm), genetic similarity index indicated that there was no significant genetic differentiation between the two populations. Statistical analysis and cluster tree diagram consistently illustrated that the genetic diversity between the two populations was at a low level. Individuals in each population had close genetic relationship. The result in this study were consistent to another study we did with the mitochondrial genome genetic diversity.

Key words: Brown-eared Pheasant, endangered species, populations, ISSR, genetic diversity

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