Significant changes in phyla and genera proportions from 4 weeks to 32 weeks of age in NOR- and NOD-fostered pups. This is a heatmap showing statistically significant changes in the proportions of phyla and genera (P < 0.05 after FDR correction) from 4 weeks of age to 32 weeks. NOR- and NOD-fostered pups are shown separately. Color shading is based on the absolute change in taxa proportion on a log-2 scale, with green indicating increases in proportion, red indicating decreases in proportion, and black indicating no change. Mouse ID is shown above each column with the following naming convention: Nursing Mother-Pup Strain (where R = NOR and D = NOD).