The results of phenotypic characteristics, plasmid patterns, host specificity, 16S rDNA PCR-RFLP, 16S rDNA IGS PCR-RFLP, RAPD and REP-ERIC-PCR revealed the high diversity within strains tested.

• 用IGS PCR-RFLP、RAPD和REP-ERIC PCR揭示了快、慢生型大豆根瘤菌的内部存在着高度的遗传多样性。