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.
Neighbor-Joining phylogenetic relationships, gene structure, and conserved protein domain of common tobacco XTH genes. (A) The unrooted phylogenetic tree of 56 NtXTHs; (B) Exon/intron organization of common tobacco XTH genes; (C) Schematic representation of the conserved catalytic domain in common tobacco XTH proteins.
