Figure 2. 16S rRNA gene phylogeny of Melainabacteria and Cyanobacteria.
Trees were built using 16S rRNA gene sequences from MEL.A1, MEL.B1, and MEL.B2 (the 16S rRNA sequence of ACD20 was not recovered). (A) 16S rRNA gene phylogeny tree with five representative sequences from each phylum obtained from the Greengenes May 2011 database (DeSantis et al., 2006). Bootstrap values greater than 50% are indicated. (B) 16S rRNA gene phylogeny built using one representative sequence from each order within Cyanobacteria from the Greengenes database (May 2011) (DeSantis et al., 2006) besides orders YS2, SM1D11, and mle1-12 from which all sequences were used. For Melainabacteria, the habitats from which the sequences were predominantly derived are indicated and colored according to isolation source (blue = environmental (non-gut); brown = gut). Cyanobacteria are displayed in green. Bootstrap values greater than 70% are indicated by a black square.