Figure 5. Hierarchical clustering of the 7 core bacterial taxa and association with gene expression. Columns correspond to the 7 core bacterial taxa; rows correspond to 9 selected differentially expressed genes. Red and blue denote positive and negative associations, respectively. The intensity of the colors represents the degree of association between the genus abundance and bacterial taxa without considering treatment effect. Numbers in each square represent significant P -values (unadjusted) with treatment and Family ID effects included in our model.