Strain Transmission between Mothers and Their Infants
(A and B) The distribution of the normalized strain intra-pair distances (STAR Methods) (A) and the number of vertical transmitted strains for each maternal source and each infant recipient body site and time point (B).
(C) Escherichia coli strain-specific gene content as identified by PanPhlAn. Strains with clear evidence of vertical transmission are indicated with boxes.
(D and E) Mother-infant phylogenies for Bacteroides uniformis and Bacteroides vulgatus as inferred by StrainPhlAn. Maternal body sites are represented by squares and infant body sites by circles. Mother-infant pairs with at least two samples are labeled with the pair ID in the trees (black circles otherwise).