Maximum-likelihood phylogenetic tree based on multiple sequence alignment of 16S rRNA genes of the isolate <i>Pontibacter diazotrophicus</i> sp. nov. H4X^T and other closely related type strains.

<p>Bootstrap values (expressed as percentages of 1000 replicates) that are >75% are shown at branch points. Asterisks indicate that the corresponding nodes were also recovered in the Bayesian tree. Bar, 0.01 substitutions per nucleotide position.