FIG 3.

Relationship of maternal oral bacteria with infant oral microbiota. (A) PCoA plot based on the Bray-Curtis distance, with the total abundance of shared ASVs shown by gradient colors. Existence and nonexistence of dot outline indicate infant and mother samples, respectively. (B) Heatmap of bacterial composition of infant microbiota with bar plots showing total abundance of shared ASVs. The relative abundance of each OTU is represented by the color intensity. Cumulative abundances of shared ASVs with own mother are represented by blue color and cumulative abundances of nonshared ASVs with own mother are represented by red color, in each OTU. OTUs with a mean relative abundance of ≥1% are shown. The hierarchical clustering of infant microbiota is performed based on the Bray-Curtis distance. (C) Boxplot of the total relative abundance of shared ASVs in each cluster. Significance was calculated using the Steel-Dwass test. The asterisks indicate that they are significantly higher (P < 0.001) than all six other clusters.