Fig. 2

The microbial beta diversity and community composition statistics. (a) PCoA analysis. (b) Microbial community composition at the phylum level. (c) Microbial community composition at the genus level between groups. (d) Statistics of taxa constituting differences between groups. The pink pentagrams marked taxa belonging to the class Alphaproteobacteria, and the purple triangles marked the counterparts of the class Gammaproteobacteria