Two distinguished Bradyrhizobium japonicum Egyptian strains, i.e. SE8 and DO4, each was fused with the fast growing Rhizobium fredii USDA201 strain. Nine fusants were obtained in the first attempt (USDA 201 and SE8) and  four fusants were obtained in the second attempt ( USDA201 and DO4). All fusants were characterized on the bases of nodulation efficiency, salt and drought tolerance, heavy metals resistance and antibiotic resistance. Electrophoretic plasmid profiles of these fusants and their parents were studied and the relatedness between them was determined according to their phylogeneric tree. Some fusants retained their nodulation efficiency and showed higher efficiencies in salt, drought and /or heavy metals resistance than their parents.