Fig. 4

a Relative abundance of bacterial genera in donor pools and recipient samples. Biological replicates were pooled for the bar graphs presented. Low abundance genera (< 1%) are represented by the ‘Other’ category. b Alpha diversity of donor pools and recipient samples, as measured by Shannon’s H index and ASV richness. Box-and-whisker plots show high, low, and median values, with lower and upper edges of each box denoted first and third quartiles, respectively. Asterisks (***) indicate samples that significantly differed from the donor pools (Dunn’s test with Bonferroni correction, P < 0.0125)