Fig. 7
From: Proteobacteria explain significant functional variability in the human gut microbiome
Variable gene families correlate with the predicted abundance of Proteobacteria. Bar plots give the fraction of gene families in each category (significantly invariable, non-significant, and significantly variable, 5% FDR) that were significantly correlated to predicted relative abundances of phyla, as assessed by MetaPhlAn2, using partial Kendall’s τ to account for study effects and a permutation test to assess significance. Asterisks give the level of significance by chi-squared test of non-random association between gene family category and the number of significant associations. (*** p≤10−8 by chi-squared test after Bonferroni correction; ** p≤10−4)