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Sequences of Dehalococcoides 16S rDNA variable regions 2 and 6, showing signature base differences that define the Cornell, Victoria, and Pinellas phylogenetic branches. The strain 195 (Cornell branch) sequence was the sequence to which the other Dehalococcoides 16S rDNA sequences were compared. An equal sign indicates a mismatch between a 16S rDNA sequence and the Cornell sequence at a signature base position. R = A or G; Y = C or T; and W = A or T.
