Fig 9. Mollicutes 16S rRNA gene phylogenetic tree calculated on 657 bp, with the neighbor-joining method, the GTR model [64] and 1000 bootstrap resamplings.

Bacterial sequences of Rimicaris chacei found in this study are labeled in red, Rimicaris exoculata symbionts in blue, and cultivated microbial strains in green. The number of clone sequences per vent site and per sample is given in brackets (abbreviations for sites and samples are as in Fig 6).