Credit: Asaf Levy, JGI
Phylogenetic tree of over 3,800 high quality and non-redundant bacterial genomes. Outer ring denotes the taxonomic group, central ring denotes the isolation source, and inner ring denotes the root-associated genomes within plant-associated genomes. Taxon names are color-coded based on phylum: green – Proteobacteria, red – Firmicutes, blue –Bacteroidetes, purple – Actinobacteria.