FIG. 3.

Taxonomic affiliations and relative proportions of sequences summarized at the genus (A) and phylum (B) levels. The taxa in panel A represent the closest matches from the NCBI database, with the numbers in parentheses representing the mean percent match for each group of sequences for subjects with BV (829 sequences) and subjects without BV (140 sequences). Note that some sequences designated Bifidobacterium by NCBI correspond to sequences consistent with G. vaginalis; there is significant sequence heterogeneity within the G. vaginalis species complex. The y axes in both panels show the proportion of sequences from subjects with and without BV calculated separately. The numbers above the bars represent the number of OTUs within each group defined at a minimum sequence similarity of 97%; only numbers >1 are shown. Note the break in the axis for Lactobacillus-like sequences from subjects without BV, where lactobacilli comprise 86% of the sequences.