Figure 5
Phylogenetic trees based on sequences of dsrB gene obtained from the BP-biofilm and SW samples, respectively.
The trees were constructed using Neighbor-Joining method. Bootstrap values of > 50% based on 500 resamplings are indicated by numbers at nodes. Each clone sequence (OTU) is represented by sample ID followed by clone number in bold. Number in bracket indicates number of clones assigned to the same OTU. Reference sequence is represented by strain name followed by accession number in parenthesis. The isolation source of the reference clone sequence is indicated by a superscript of ‘W’ for water, ‘S’ for sediment and ‘E’ for environmental sample.
