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 neighbor-joining tree reconstructed on the basis of the Tamura–Nei substitution model of evolution with gamma distribution shape parameter 1.52 for cloned and direct sequenced 18S ribosomal DNA sequences of Panax ginseng and other congeneric species. The bootstrap values higher than 50 are indicated at the branching nodes. 1–24, individual clones; 8 and 9, two independent polymerase chain reactions; N, native plant.
