Figure 5.

Key phylotypes of gut microbiota showed differences between female and male mice. Key phylotypes were identified as those OTUs with a value of discrimination mean decrease in accuracy greater than 0.002 in Random Forest models of female and male mice on Day 0. The heat map shows the abundance (log 2 transformation) of OTUs. OTU identification numbers are shown along the right side of the heat map, with red print indicating greater abundance in male mice and blue indicating greater abundance in female mice. Hierarchical clustering of the OTUs was performed using the Spearman rank correlation distance metric.