Fig. 2

The similarity among different groups. A Principal coordinates analysis (PCoA) based on Bray-Curtis distance matrix and ASV level. PERMANOVA analysis was used to group similarities. B Similarity percentage (SIMPER) analysis among different group. C The top 10 genera that accounted for a variance was presented. Mann–Whitney U test was used for variation analysis. D and E Network of co-occurring genera in the SR (D) and FR group (E). The blue nodes indicate genera in the FR group and the red nodes indicate genera in the SR group. The color edges stand for strong (Spearman’s correlation coefficient < −0.5 or > 0.5) and significant (P < 0.05) correlations between genera, including positive correlations (orange) and negative correlations (green). ^*0.01 ≤ P < 0.05; ^**0.001 ≤ P < 0.01; ^***0.0001 ≤ P < 0.001. Data are shown as mean ± SEM. n = 6