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利用 67 个 SSR 标记, 分析了来自我国栽培大豆初选核心种质中的 158 份夏大豆, 旨在阐明其遗传多样性特点, 为育种利用提供理论依据. 结果表明, 在所有供试夏大豆中共鉴定出等位变异 460 个,平均每个位点有6.9 个; 其中, 80 份黄淮夏和 78 份南方夏大豆的等位变异数分别为 414 个和419个, 平均每个位点均接近 6.2 个. 所有供试夏大豆平均每个位点多样性(D)为 0.735, 变化范围为 0.414~0.905,其中黄淮夏大豆 D 值平均为 0.708, 变化范围为 0.387~0.886; 南方夏大豆 D 值平均为 0.687, 变化范围为 0.189~0.884. 黄淮夏大豆和南方夏大豆在特异等位变异数、等位变异频率、遗传相似性系数均存在差异, UPGMA 聚类分析也可将黄淮夏大豆和南方夏大豆基本分成 2 类. 这表明黄淮夏大豆和南方夏大豆可划为2个不同的基因池. 在夏大豆育种中, 两种夏大豆类型间可以通过种质资源相互利用来拓宽类型内育成品种的遗传基础.
Using 67 SSR markers, we analyzed 158 summer soybean cultivars from our country’s primary soybean germplasm, in order to clarify the characteristics of its genetic diversity and provide a theoretical basis for breeding use.The results showed that in all the summer soybean 460 alleles were identified, with an average of 6.9 per locus. Among them, the allele numbers of 80 Huanghuai summer and 78 southern summer soybean were 414 and 419, respectively, with an average of 6.2 (D) of all tested summer soybean was 0.735, with a range of 0.414 ~ 0.905, in which the average value of D of Huanghuai summer soybean was 0.708, the range of variation was 0.387 ~ 0.886; the average value of D of southern summer soybean was 0.687 , Ranging from 0.189 to 0.884. There were differences in specific alleles, allelic frequencies and genetic similarity between Huanghuai summer soybean and southern summer soybean, UPGMA clustering analysis could also divide Huanghuai summer soybean and southern summer soybean into 2 This indicates that Huanghuai summer soybean and southern summer soybean can be divided into two different gene pools.In the summer soybean breeding, two types of summer soybean can be used with each other through germplasm resources Broaden the type of genetic varieties within the genetic basis.