浙江省大豆种质资源遗传多样性分析

利用47个SSR位点对52份浙江省大豆种质资源进行遗传多样性分析，共检测到411个等位变异，等位变异数变化范围为3～21个，平均每个位点等位变异数为8.75个；每个SSR 的Simpson指数的分布范围为0.5506～0.9357，平均值为0.8061；Shannon-weaver指数分布范围为0.9083～2.8440，平均值为1.8386；材料的成对相似系数变化范围为0.5547～0.8589，总体平均值为0.6775。在聚类分析中，以相似系数为0.666为划分标准，将52份材料分为三大类，第Ⅰ类包括20份材料，以杭嘉湖、台州、丽水等地区的材料为主；第Ⅱ类包括24份材料，以绍兴、金华、衢州、丽水地区材料为主；第Ⅲ类包括8份材料，以金华、衢州地区的材料为主，SSR聚类结果与材料的地理来源和生态型没有明显的相关性，而与株高、生长习性有一定的相关性。

Genetic diversity of soybean germplasm resources from Zhejiang revealed by SSR markers

Genetic diversity of 52 soybean germplasm resources had been evaluated by 47 SSR loci in this study. The results indicated that 411 alleles were detected,and the number of alleles was from 3 to 21 and the mean alleles per locus was 8.75. The distribution of Simpson index was 0.5506-0.39357 and the mean Simpson index was 0.8061 ,meanwhile,the distribution of Shannon-weaver index was 0.9083-2.8440 and the mean Shannon-weaver index was 1.8386. The range of Nei-Li similarity coefficient was from 0.5547 to 0.8589 with average value of 0.6775. It indicated that these materials had abundant genetic diversity. The results of clustering showed that 52 materials were divided into three groups by setting similarity coefficient at 0.666. Group Ⅰincluded 20 materials almost from Hangjiahu,Taizhou,Lishui area;Group Ⅱ included 24 materials almost from Shaoxing,Jinhua,Quzhou, Lishui area;Group Ⅲ included 8 materials almost from Jinhua,Quzhou area. It indicated that the clustering of SSR had no dose relationship with origins or eco-type of the materials,but were related to plant height or growth habit