Fig. 7

Each data point is a specific litter sampled and the different shapes represent the different sampling times. Multidimensional scaling of pair-wise Bray–Curtis distances among microbial community profiles measures how similar or different the microbial communities are, with divergence from zero reflecting greater variation as a function of time of sampling and specific litter sampled. Fecal samples taken from mice reared from parturition (Day 1) for 6 weeks on the antibiotic vancomycin (AB) or on regular water (dH2O) as controls. Litters were housed with their mothers until weaning at Day 22 and subsequently housed with their littermates until Day 43. Samples were taken on Days 21, 28, 35, and 42 from cages containing a single mother and all of her pups (Day 21) or from cages containing only pups from the same litter (Days 28, 35, and 42)