In this research,SCo T markers were applied to detect the genetic diversity among 159 cultivated soybeans released during 1923- 2005 in China from Huang-Huai-Hai and southern region. Twenty seven primers were selected from 80 SCo T primers,130 DNA bands were produced by 27 primers including 110 polymorphic bands,with an average of 84. 62%. Nei' s range of gene diversity ranged from 0. 24 to 0. 49,and the average was 0. 37. The average value of locus polymorphism information contents 0. 27. Dendrograms gener...