Spearman correlation of relative abundances in 4 taxa associated with the LCT locus.Abundances of the Bifidobacterium, Negativibacillus, UBA3855 and CAG-81 genera are compared. Abundances in the entire FR02 cohort is compared to those in a subset of genetically lactose-intolerant individuals, and to a subset of genetically lactose-intolerant individuals who reported a regular dairy diet. Coloured boxes denote the strength of correlation (ranging from −1 in red to 1 in dark blue), while a white square denotes a non-significant p-value for the two-sided Spearman correlation (p > 0.05).