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.
A neighbor-joining tree was generated by MEGA5 with bootstrap analysis based on 1000 replications. Bootstrap values are shown at branch points. Scale bar indicates the number of substitutions per site.
