FIG 6.

Phylogenetic tree of 30 OTUs belonging to the phylum Gemmatimonadetes and the reference acsF genes from G. phototrophica AP64 and others. The phylogenetic tree was constructed using the ML algorithm with MEGA 6.1. Bootstrap values are based on 1,000 replicates, and only values of >50% are shown. The numbers in parentheses after the OTUs are the OTU reads in water column, upper- and deep-sediment samples, separated by slashes (“/”). OTUs without a number in parentheses means the overall reads for this OTU were <10.