Phylogenetic tree of bacterial 16S rRNA genes generated using sequences from the Greengenes database  and cloned sequences from this study. The relative proportion of clones in the attached (ATT) or suspended (SUS) libraries is indicated below the label of each branch. Colored backgrounds distinguish the clades within the ∂-Proteobacteria (blue) from the other bacterial phyla (orange).
Flynn et al. BMC Microbiology 2013 13:146 doi:10.1186/1471-2180-13-146