Core OTUs present in at least seven of the nine oral sites.

Abstract

<p>While each 16S amplification (V1–V3 and V3–V5) has 6 core OTUs, there are differences between the amplifications, with Pasteurellaceae and Lactobacillales identified with the V3–V5 tags but not the V1–V3 tags, and <i>Leptotrichia</i> and <i>Granulicatella</i> (a member of the Lactobacillales order) identified with the V1–V3 tags but not the V3–V5 tags. <i>Fucobacterium</i>, <i>Gemella</i>, <i>Streptococcus</i>, and <i>Veillonella</i> were identified in both sets of OTUs.</p