FIG. 7.

16S rDNA phylogenetic tree showing phylogenetic relationships based on the base sequence differences in regions 2 and 6 for the Dehalococcoides group, as well as the compositions of three sequence subgroups (Cornell, Victoria, and Pinellas sequence subgroups). The positions of the loosely affiliated 16S rDNA from uncultured environmental samples are also shown. The RFLP17 sequence (33) was used to root the phylogenetic tree. Bootstrap values are indicated at the branch points. DHE, D. ethenogenes.