16S rDNA-RFLP ANALYSIS OF THE FAST-GROWING SOYBEAN RHIZOBIAL STRAINS ISOLATED FROM XINJIANG REGIONS
16S rDNA-RFLP分析新疆快生大豆根瘤菌的分类地位

Thirty-four fast-growing soybean rhizobial strains isolated from Xinjiang Regions were analyzed by 16S rDNA-RFLP in comparison with several type and reference strains of related species. The results indicated that all 34 isolates shared the same patterns and above the similarity lever of 90% clustered with S. xinjiangensis strains, but were different with S. .fredii, S. meliloti, S. saheli, S medicae and S. teranga. It showed that S. xinjiangensis is different from S.,fredii and should be assigned to a separated species according to the 16S rDNA-RFLP analysis. In order to make sure, the more analysis for the taxonomic position is under way.