Fig. 3.
An unrooted phylogeny (top) and the eight partitions of its node set (bottom). Thicker, colored branches connect members of the same part.
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.