Figure 1

Genome-based Geobacter phylogeny. Bayesian inference of the phylogenetic tree of the six Geobacter species discussed, using another Geobacteraceae species, Pelobacter propionicus, as the outgroup. The tree was based on a concatenation of the proteins in the 697 families that had exactly one ortholog conserved in each of the seven genomes (listed in Additional file 4 of the supplementary material). Values at branch points are posterior probabilities.