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 numbers near the nodes are bootstrap values for 1,000 replicates. Bootstrap values less than 80% are not shown. The numbers in square brackets precede the locations are referred to in Fig 1.
