Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Insertion errors are not equally distributed across the reference phylogeny. y-axis data show the mean insertion distance for unambiguous 150-nt V4 fragments grouped by phylum of the true OTUs. Numbers of taxa within phyla are indicated as numbers following phylum names.
