Fig. 1.

Phylogenetic tree of the 16S rRNA gene from 36 isolates (in bold) and type strains of closely related species constructed using the Maximum Likelihood method based on the Tamura 3-parameter model in MEGA6 [53]. There was a total of 1305 positions in the final dataset, and node supports higher than 50% are labelled with a bootstrap value (1000 replicates). The sequence of Bradyrhizobium japonicum USDA 6^T was included as an outgroup. Bar indicates five nucleotide substitutions per 100 nucleotides.