traG Gene Is Conserved across Mesorhizobium spp. Able to Nodulate the Same Host Plant and Expressed in Response to Root Exudates

Figure 2

Maximum Likelihood tree based on nifA gene sequences (alignment length of 1014 bp). Tamura 3-parameter model with rate among sites gamma distributed with invariant sites was used. Percentage of bootstrap support (1000 replicates) is indicated on internal branches. Scale bar indicates 0.1 substitutions per site.