An official website of the United States government
Here's how you know
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.
Phylogenetic tree of Arthrospira species. A maximum-likelihood tree was inferred using 126 orthologous proteins. The bootstrap percentages (BPs) are indicated on the nodes. The bold lines represent 100% BP. The dotted branches are shown in quarter-length.