SSR markers were used to identify the genetic contribution of wild soybean to 10 soybean cultivars. The results show that wild soybean contains a few specific alleles, with 17.27% utilization rate. Backcross can reduce the utilization rate of specific alleles of wild soybean, and 19 specific alleles, associated with pod size and number, stearic acid level and anti SCN, which located in 16 loci, can be easily utilized by genetic methods. Ten soybean cultivars produced 18 new alleles from 13 loci. In conclusion, improve-ment and innovation of soybean is promising based on wild soybean. Genetic contribution of different hybrids upon bred cultivars var-ied significantly. Desirable traits, including small grain, multi pod, high stearic acid level and resistance to cyst nematode are ac-cessible to breeding and hybridization.%采用SSR标记鉴定野生大豆对10个大豆育成品种的遗传贡献.结果表明:野生大豆含有较多的特有等位变异,利用率为17.27%;回交能降低野生大豆特有等位变异利用率;野生大豆在16个位点上与粒重、荚粒数、高硬脂酸含量、抗胞囊线虫等有关的19个特有等位变异易被育成品种遗传利用;10个大豆育成品种在13个位点上产生了18个新的等位变异.利用野生大豆改良和创新大豆有较大空间.不同的杂交组合方式对育成品种的遗传贡献有明显差异.野生大豆的小粒、多荚、高硬脂酸含量以及抗胞囊线虫等优良性状基因易被育成品种选择利用.
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