6种柴胡属植物核型似近系数聚类分析  

Clustering analysis of karyotype resemblance-near coefficient for 6 Bupleurum species

作　　者：宋芸[1] 乔永刚[1] 吴玉香[2] 

机构地区：[1]山西农业大学生命科学学院,山西太谷030801 [2]山西农业大学农学院,山西太谷030801

出　　处：《中国中药杂志》2012年第8期1157-1160,共4页China Journal of Chinese Materia Medica

基　　金：山西省自然科学基金项目(2009011040-2);山西省科技攻关项目(051057-2);山西省高校高科技开发项目(2009011)

摘　　要：目的:试图利用核型参数对药用植物进行鉴定并探索植物之间的遗传进化距离。方法:利用柴胡属6种植物的核型数据,应用核型似近系数聚类分析并计算物种间的核型进化距离。结果:红柴胡Bupleurum scorzonerifolium与北柴胡B.chinense核型似近系数最大(0.992 0),核型进化距离最小(0.008 0),亲缘关系最近;黑柴胡B.smityii与川岛柴胡B.falcatum核型似近系数最小(0.479 4),核型进化距离最大(0.735 2),亲缘关系最远;结论:植物的核型具有物种稳定性,是鉴定药用植物的重要参数。通过对柴胡属植物核型似近系数的聚类分析得出了不同物种间的遗传距离,在6种柴胡属植物中,不同染色体数目的物种表现出较远的遗传距离。Objective： To explore the genetic evolutionary distance between plants by using karyotype parameters identification of medicinal plants.Method： The cluster analysis of karyotype resemblance-near coefficient and evolutionary distance was used for 6 Bupleurum species.Result： The results showed that there were the biggest karyotype resemblance-near coefficient（0.992 0） and the smallest evolutionary distance（De=0.008 0） between B.scorzonerifolium and B.chinense,indicating the closest relationship,and the minimum karyotype resemblance-near coefficient（0.479 4） and the maximum evolutionary distance（De=0.735 2） between B.smityii and B.falcatum,indicating the most distant relationship.Conclusion： Karyotype was an important parameter for identification of medicinal plants because karyotype was stabilized for species.The genetic distance between in 6 species of Bupleurum species was obtained by karyotype clustering analysis of karyotype resemblance-near coefficient.There was the bigger evolutionary distance between the species which had different chromosome number.

关 键 词：柴胡属 核型 似近系数 聚类分析 进化距离 

分 类 号：S567.79[农业科学—中草药栽培]