Figure F2. Phylogenetic tree of the partial 16S rDNA sequences from microbes from native basalt samples (in bold, named ODP-Hole-Sequence number) and reference strains (with accession numbers in parenthesis) obtained from GenBank. Reference strains were chosen as the closest known relatives to the sample sequences. Bootstrap values, indicated at the nodes, were obtained from 1000 bootstrap replicates and are reported as percentages. The scale bar corresponds to 0.1 change per nucleotide. CFB = Cytophaga/Flavobacterium/Bacteroides.

Figure F2. Phylogenetic tree of the partial 16S rDNA sequences from microbes from native basalt samples (in bold, named ODP-Hole-Sequence number) and reference strains (with accession numbers in parenthesis) obtained from GenBank. Reference strains were chosen as the closest known relatives to the sample sequences. Bootstrap values, indicated at the nodes, were obtained from 1000 bootstrap replicates and are reported as percentages. The scale bar corresponds to 0.1 change per nucleotide. CFB = Cytophaga/Flavobacterium/Bacteroides.