Fig. 2

Abundance of eukaryotes colonizing infants. a The scaled relative abundance of each eukaryote colonizing an infant. Numbers on the right indicate the maximum relative abundance of the organism in that infant, and gray dividing lines indicate 0% relative abundance. Dots on the line-plots indicate days of life on which fecal samples were collected and sequenced. Infants colonized by multiple eukaryotes are marked with a colored asterisk. Pink bars indicate periods of antibiotic administration. b Metadata significantly associated with eukaryote abundance. The distribution of values for all samples in which eukaryotes are not present (left; white box plot) compared to values of samples in which eukaryotes are present (right; gray box plot). The p values were calculated using the Wilcoxon rank-sum test with Benjamini-Hochberg multiple testing p value correction. P. lilacinum was excluded from statistical tests due to its likely contaminant status. c Fungi are distributed among fewer individuals than expected by random chance. A permutation test was performed to determine the probability of observing 10 or less unique individuals colonized by 13 fungi from a population of 161 individuals. The number of unique individuals colonized is shown on the x-axis, and the empirical p value based on 100,000 trials is shown on the y-axis. An asterisk marks the true number of unique infants colonized in this study (10) and the associated p value