Fig. 4

Analysis of species differences and marker species. A Venn Diagram. B LEfSe analysis. Note: The taxonomic branch map shows the taxonomic hierarchy of the main taxa from phylum to genus (from inner circle to outer circle) in the sample community. The node size corresponds to the average relative abundance of the classification unit; Hollow nodes represent classification units with insignificant inter group differences, while nodes with other colors (such as green and red) indicate that these classification units exhibit significant inter group differences and are more abundant in the group samples represented by that color. The letters indicate the names of taxonomic units with significant differences between groups