中国不同地理居群丹参遗传多样性分析

目的：研究中国不同地理居群丹参的遗传多样性。方法：选取我国27个不同居群的丹参样本,进行AFLP分析,POPGENE及SPSS软件分析处理数据。结果：通过筛选得到10对AFLP引物,扩增得到528条带,其中476条为多态性条带,多态性带比率为90.15%；Nei’s多样性指数He为0.261 2,Shannon多样性指数I为0.403 3；27个居群遗传相似性系数0.504～0.789；用UPGMA法得到所有样本的聚类图,可分为7个主要分支组和1个组外个体。结论：我国野生丹参居群间存在较高多态性,遗传多样性较为丰富。

Analysis on genetic diversity of different Salvia miltiorrhiza geographical populations in China

Objective: To research on genetic diversity of different Salvia miltiorrhiza geographical populations in China. Method: The genetic diversity of 27 S. miltiorrhiza geographical populations from ten provinces in China was estimated using amplified fragment length polymorphism (AFLP) markers. The data of amplified bands were analyzed by the software POPGENE and SPSS. Result: The ten primers employed produced a total of 528 discernable and reproduceable amplified fragments. There were 476 polymorphic brands. The percentage of polymorphic bands with in different populations was 90.15%. Genetic diversity analysis showed that Nei's gene diversity (He) was 0.261 2 and Shannon's genetic diversity index (I) was 0.403 3. The coefficient of gene similarity was 0.504 0-0.789 0 between populations. The cluster map including all samples were obtained by UPGMA. In the map, there were seven cluster groups and one individual outside the groups. Conclusion: The genetic diversity with in different geographical population of S. miltiorrhiza in China is plentiful.