Prokaryote trees. Reference tree for the bacteria is taken from Wu et al. . Chlorobium tepidum is not present in  but is displayed at the position of the other Chlorobi. The Archaea are marked in turquoise. Full taxon names can be found in .
Kupczok BMC Evolutionary Biology 2011 11:205 doi:10.1186/1471-2148-11-205