Except for IAM13129, B33 and 711, at the similarity level of 75% dendrogram derived from 16S rDNA RFLP-PCR showed that all isolates were devided into two phylogenetic branches: Rhizobium and Sinorhizobum and unknown one.

• 在75%25的相似水平上，除了IAM13129，B33，711，所有供试菌株全部聚群，分为Rhizobium和Sinorhizobum系统发育分支和未知系统发育分支。