Figure 7
From: Microbial communities evolve faster in extreme environments

Odds ratio of the AMD genes compared to those from all sequenced prokaryotes for the genes annotated as COG functional categories.
Asterisks denote a significant deviation from the null hypothesis (ln odds ratio = 0) (one-tailed Fisher exact test; *P < 0.01; **P < 0.001, α = 0.01).