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.
Functional categories and evolutionary dynamics of gene families. (A) Distribution of COG categories for each gene family set. (B) Expansion and contraction of gene families in each branch of the core genome tree. The number of expanded genes (+; blue) and the number of contracted genes (−; red) are shown in each branch. (C) Distribution of horizontal genes in P. shigelloides genomes. (D) The potential donor bacterial taxa providing donor genes for HGT.
