Fig. 6

Abundance difference of the genes encoding beta-galactosidase between T2D and normal microbiomes (NGT). The abundance was measured as the number of reads that can be mapped to significantly T2D-enriched beta-galactosidase-encoding genes per billion reads. Note that we excluded 3 of 50 T2D samples with overly abundant beta-galactosidase genes (abundance > 6000) from the plot for clarity