Fig. 1

Phylogeny of the Proteobacteria highlighting DPRB. The dataset used to generate this phylogeny consisted of 90 taxa and 92 conserved orthologous genes, resulting in an alignment of 13066 amino acid positions. Using the LG substitution model, this tree was determined to be the most likely of 100 independently calculated trees, and all nodes were fully supported over 100 bootstrap replicates. DPRB are bolded and in green. The scale bar indicates the branch length that correspond to 0.1 amino acid substitutions per site