塔里木马鹿微卫星遗传多样性与产茸量的相关性研究Relationships between Genetic Diversity of Microsatellites and Anter Production Capacity of Tarim Red Deer
袁国伟,席继峰,郭庆河,袁其彬,钟灵,彭林泽,曾献存,贾斌
摘要(Abstract):
利用7个微卫星遗传标记,采用PCR扩增,12%非变性聚丙烯酰胺凝胶电泳、Sanguinetti银染法显色,对新疆塔里木马鹿亚种遗传多样性进行检测,统计各群体的等位基因组成、平均有效等位基因数(E)和平均基因纯合率(Rh),根据等位基因频率计算出各群体的平均遗传杂合度(h)、多态信息含量(PIC)和群体间的遗传距离,利用分子进化遗传分析软件(MEGA),采用邻结法(NJ)重建系统发生树。根据等位基因频率,利用PHYLIP(3.6)分析软件,采用最大似然法(ML)构建系统发生树,应用自举检验(bootstrap test)估计系统树中节点的自引导值(bootstrap value),并进行了系统发生分析。同时对部分马鹿群体个体基因型与产茸量之间进行了相关分析。结果表明:7个微卫星位点在3个塔里木马鹿中的多态信息含量除BMS2508和Celjp0023没有多态性,以及BM5004为中度多态外,其他4个微卫星均为高度多态,可作为有效的遗传标记用于3个塔里木马鹿群体遗传多样性和系统发生关系的分析。所有马鹿群体的平均PIC为(0.5196)、h(0.5552)和E(2.45),其基因多态性和遗传多样性相对丰富。塔里木马鹿35团群体与沙雅群体的血缘关系及遗传距离近于阿拉尔群体,3个塔里木马鹿群体的系统发育关系基本符合其地理分布和育成史。微卫星位点BM4208的166bp/185bp基因型和微卫星BM888的208bp/208bp基因型可以对塔里木马鹿35团群体高产茸量进行分子遗传标记。
关键词(KeyWords): 马鹿;微卫星;遗传多样性
基金项目(Foundation): 石河子大学自然基金项目资助课题(ZRKX2004012)
作者(Author): 袁国伟,席继峰,郭庆河,袁其彬,钟灵,彭林泽,曾献存,贾斌
DOI: 10.13326/j.jea.2008.01.007
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