Effective transfer of indigenous plasmids from R. leguminosarum biovar phaseoli strain RCR3622 was accomplished by transposon Tn5-Mob accompanied by the mobilizing plasmid RP4-4 Transfer of two of the four plasmids of RCR3622 into R.

• 转座子Tn5-Mob在质粒RP4-4配合下能诱动(Mobilization)菜豆根瘤菌RCR3622内源质粒的诱动转移。 在种间根瘤菌杂交过程中,二个巨型质粒的转移频率均大于10~(-3);