highly significantP < 1e-4
Beta diversity analysis reveals a highly significant difference in community membership between the breast and skin tissue microbiota, as indicated by unweighted UniFrac analysis (MiRKAT P < 1e-4, Fig. 2E ), but the difference is not significant in weighted analysis (MiRKAT P = 0.14, Fig. 2F ), indicating that the major difference lies in the rare or less abundant lineages 22 .