FIG. 5.

Bootstrapped neighbor-joining tree of OTUs in sediment-free PCB-dechlorinating enrichment cultures and their closest relatives and type strains. The numbers at the nodes indicate the percentages of times that nodes appeared in 1,000 trials. Nodes that are not labeled appeared 100% of the time. Sequences cloned from DNA extracted from the enrichments after eight transfers without sediment are indicated by boldface type. JN18 refers to the experiment, and the additional letters and numbers indicate the clone name and RFLP designation where applicable. Type strains are indicated (T).