Figure 3.

Prediction of the maternal origin of the meconium microbiota by dyad analysis. (a) Number of shared operational taxonomic units (OTUs) between the meconium microbiota and microbiota of different types of maternal samples. (b) Genus-level phylotypes of meconium OTUs that shared with two to four types of maternal samples. The upper half circle illustrates the distribution of sample sharing of these OTUs, while the lower half circle represents their genus-level phylotypes. The phylotype of each OTU shown in the upper half circle is illustrated by a line connecting to the lower half circle. Each assigned genus is illustrated by a different color, and the number written next to the lower circle represents the number of OTUs of the respective genus. The eight meconium genera listed on the right side were common to all four maternal sample types, while the 19 meconium genera listed on the left side were common to two or three types of maternal samples. (c) Meconium genera that were common to only one type of maternal sample. IF: meconium; AF: amniotic fluid; MF: maternal feces; MS: maternal saliva; MV: vaginal fluid.