Fig. 2

Expanded basal part of the constrained rRNA phylogeny of Oxyphotobacteria, with clusters E, F, G1 and G2. The tree is rooted on Melainabacteria. Asterisk indicate constrained genome sequences. The colour of the backbone corresponds to the groups of Shih et al. [12]. “Unsequenced” clusters (both monophyletic and paraphyletic) are shown on a yellow background