[关键词]
[摘要]
目的 研究委陵菜属Potentilla L. 药用植物的亲缘关系。方法 对6份供试材料进行ISSR分析。利用POPGENE软件分析遗传相似系数,UPGMA方法聚类,构建亲缘关系系统图。结果 11条引物共得到105条扩增条带,其中有89条呈现多态性,占84.76%。遗传相似系数变化范围0.447 6~0.790 5。结论 聚类结果显示,来源于同一地区的委陵菜属药用植物种质聚在一起,呈现出一定的地域性分布规律。从分子水平对委陵菜属药用植物的鉴定和开发提供遗传基础,更好地指导种质资源的收集、评价。
[Key word]
[Abstract]
Objective To analyze the genetic relationship among the medicinal plants of Potentilla L. Methods Six species of germplasm resources in Potentilla L. were analyzed by ISSR molecular markers. To make up the systematic diagram of genetic relationship by Popgene 1.32 software, cluster by UPGMA method, and establish the dendrogram. Results A total of 105 ISSR bands were scored for 11 primers, among which 89 were polymorphic bands. The average percentage of polymorphic bands was 84.76%. Genetic similarity coefficient changed from 0.447 6 to 0.790 5. Conclusion By cluster analysis, it shows that some of the medicinal plants in Potentilla L. from the same region are in the same group and demonstrates the rule of geographical distribution in the tested materials. This study will provide the foundation for identification and development of medicinal plants in Potentilla L., and guide collection and evaluation of germplasm resources.
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[基金项目]
湖南省高等学校科学研究项目(湘财教指 [2010] 75号 10C0442)