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不同生态类群藏獒亲缘关系的RAPD分析

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摘要 采用RAPD技术对不同生态类群藏獒个体之间的亲缘关系进行了分析,从80个随机引物中筛选出27个引物,共扩增出369条带,其中339条带表现出多态性,多态性位点百分率为91.86%。根据20只藏獒个体之间的Nei氏标准遗传距离用UPGMA法构建了聚类分析图。结果表明:河曲藏獒和青海藏獒同类群个体之间亲缘关系较近,在聚类图上形成了河曲藏獒类群和青海藏獒类群各自独立的分支,这一结果有力地支持了按地域对藏獒进行生态类群划分的说法。
出处 《江苏农业科学》 CSCD 北大核心 2010年第5期72-74,共3页 Jiangsu Agricultural Sciences
基金 甘肃省科技攻关项目(编号:GKC-97-27-5) 天水师范学院青年教师基金
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