Fig. 4
Plasmid profiling of Rhizobium strains by the Eckhardt method. Plasmids were run on a 0.9% agarose gel at 5 Volts for 30 min then 60 Volts for 36h in a cold room. Lanes: 1: R. etli CFN42T (ladder); 2: R. tropici CIAT899T (ladder); 3: R. mesoamericanum STM3625 (French Guiana); 4: R. mesoamericanum STM3629 (French Guiana), 5: R. mesoamericanum STM6155 (New Caledonia); 6: R. mesoamericanum CCGE501T (Mexico). The * indicates the symbiotic plasmid