Temporal Shifts in Microbial Communities in Nonpregnant African-American Women with and without Bacterial Vaginosis

Figure 2

Neighbor joining based phylogeny of the 1,196 Lactobacillus 16S rRNA gene clones obtained in this study. Clones that were closely related to known Lactobacillus species were condensed into trapezia. Numbers in parentheses represent, for each group, the number of clones obtained from participants with bacterial vaginosis (left) and without bacterial vaginosis (right). The phylogeny is based on 503 unambiguously aligned nucleotides. Branch points with >75% conservation are represented with a closed circle; branch points with 50–74% conservation are shown with an open circle. Genbank accession numbers for reference species are shown in brackets. A 16S rRNA gene from Bacillus subtilis was used as the outgroup. Scale bar represents 0.1 change per nucleotide.