supported by the National Natural Science Foundation of China (Grant No. 30470065);the Natural Science Foundation of Hubei Province (Grant No. 2007ABA316);the Key Research Project of Office of Education of Hubei Province (Grant No. D20081509)
Mesorhizobium huakuii strain 7653R harbored two indigenous plasmids named pMH7653Ra and pMH7653Rb.The larger plasmid pMH7653Rb (symbiotic plasmid) was transferred to M.huakuii HN308SR harboring three plasmids: pMHHN30...