FIG. 1.

Phylogenetic maximum likelihood dendrograms calculated with nearly complete 16S rRNA gene sequences (>1,300 bp) of the candidate phylum “Poribacteria” (a) and of the Deltaproteobacteria and Chloroflexi (b) that were recovered from marine verongid and dictyoceratid sponges. Sequences obtained in this study are indicated in bold. The specificities of newly designed, “Poribacteria”-specific FISH probes POR389, POR600, and POR1130 are indicated in square brackets. Neighbor-joining or maximum parsimony (100 resamplings) bootstrap values are provided for relevant groups. Bar, 10% divergence. The arrow indicates the outgroup.