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.
The color scale-bar represents the level of bootstrap support that varies from 0–50% (white bars) to more than 90% (black bars) supporting each branch. The values are calculated as the mean of 10 replications.
