FIG 3.

Significant correlations between family-level (A and B) and genus-level (C and D) bacterial OTUs before (A and C) and after (B and D) 2 months of diet intervention with durum wheat flour and whole-grain barley pasta. The colors of the scale bar denote the nature of the correlation, with 1 indicating a perfectly positive correlation (red) and −1 indicating a perfectly negative correlation (green) between two microbial families or genera. Only significant correlations (FDR, <0.05) are shown.