Core microbiome analysis.

The core microbiome is shown as a percent of samples (%) that include the corresponding percent (%) of fungal (red) and bacterial (blue) OTUs. To the right is the list of bacterial (n = 9) and fungal (n = 1) OTUs, which meet the criteria for inclusion into the core community. We compared our observed core taxa with four other studies also reporting core communities (information on studied cohorts and core community inclusion criteria are included in Materials and Methods). The dot indicates that the core taxa identified in our cohort was also reported by respective study at genus or family taxonomic level.