摘要
利用 4 9对SSR引物和 14个农艺性状对 96份黄淮夏大豆进行遗传多样性分析 ,以了解黄淮夏大豆产区的资源多样性状况 ,为种质资源的利用和开发提供帮助。结果表明 ,SSR的遗传多样性指数的分布范围为 1.0 70 0～2 .7310 ,Simpson指数分布范围为 0 .5 313～ 0 .92 0 3;14个农艺性状的遗传多样性指数平均值为 1.1912 ,Simpson指数的平均值为 0 .6 0 79,可见黄淮夏大豆具有丰富的遗传变异。 96份材料的农艺性状和分子数据聚类结果均呈现一定的地理分布规律。根据农艺性状聚类时 ,可根据种皮色将材料划分为 2大类群。种皮色、生育期、粒大小相同的材料聚在一起 ,说明在对不同生态类型的大豆进行分类时 ,将种皮色、生育期、粒大小等作为进一步分组的依据是有效的 。
This study evaluated genetic diversity of Huanghuai summer sowing soybean by means of 49 SSR loci and 14 traits. The aim of the study is to reveal genetic diversity of Huanghuai summer sowing soybean. 49 pairs SSR loci of the distribution of Shannon-weaver index is 1.0700-2.7310 and the distribution of Simpson index is 0.5313-0.9203.14 traits of mean of Shannon-weaver index is 1.1912 and mean Simpson index is 0.6079. This indicated that the Huanghuai summer sowing soybean has abundant genetic diversity. The results of clustering showed some rules in the geographical distribution by means of morphological traits and molecular data. The seed coat color plays an important role in morphological traits clustering. The materials has divided into two sections by means of the seed coat color in the clustering which make use of the 14 traits. The result indicated that the sampling method of soybean core collection in China based on geography and taxonomic system and grouped by seed coat color, growth period, 100-seed-weight is rational and effective.
出处
《中国农业科学》
CAS
CSCD
北大核心
2004年第1期15-22,共8页
Scientia Agricultura Sinica
基金
国家"973"计划资助项目 (G19980 10 2 0 3 )
