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.
Phylogenic tree of functionally characterized STSs, except four ShSTSs (white circles) and seven PpSTSs (white circles), derived from basidiomycete fungi. STSs derived from C. pseudo-pinsitus and S. hirsutum are in red and blue, respectively. STSs derived from ascomycete fungi are indicated by gray circles.
