FIG. 3.

Phylogenetic analysis of Cytophaga/Flavobacterium/Bacteroides 16S rRNA gene clones from JEG and BG. This phylogenetic tree was rooted with Escherichia coli (GenBank accession number J01695). A mask of 1,074 nucleotides, including all nonambiguously aligned positions, spanning nearly the full length of the 16S rRNA gene, was included. Bootstrap values (100 replications) generated by the neighbor-joining method are shown above relevant nodes, and those generated by maximum-parsimony analysis are shown below the nodes. Only bootstrap values above 50 are shown. Sequences from formally named isolates are in italics, sequences from environmental gene clones and unnamed isolates are in plain text, and sequences from the subglacial samples are in boldface. GenBank accession numbers of the sequences from other studies are included.