Fig. 3.

ML phylogenetic trees of partial sequences of the chromosomal protein encoding genes gyrA, recA and nolR. Type strains are indicated by superscript T. Only bootstrap values ≥50% are shown. The accession numbers for the sequences are indicated within parentheses. Those generated in this work for Sinorhizobium chiapanecum are shown in bold. The branches corresponding to the outgroup sequences Rhizobium leguminosarum USDA 2370^T and Rhizobium etli CFN42^T for the nolR tree are not shown because they were too divergent from the Sinorhizobium sequences.