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Diversity of human-associated members of the Chloroflexi. (A) Abundance and distribution of chloroflexi rRNA sequences in the body sites sampled under the NIH-HMP project (asterisks indicate no chloroflexi sequences found). (B) PCoA based on unweighted Unifrac distances between human-associated and environmental chloroflexi. The circled cluster highlights the distinct oral and mammalian gut phylotypes.
