Fig. 5

NMDS and ANOSIM analysis. A, B, C and D: NMS analysis (A: in the endangered and widespread species groups at the 16S OTU level; B: in the root and rhizosphere soil groups at the 16S OTU level; C: in the endangered and widespread species groups at the ITS OTU level; D: in the root and rhizosphere soil groups at the ITS OTU level). E and F: ANOSIM analysis between the root and rhizosphere soil groups (E: at the 16S OTU level; F: at the ITS OTU level). ANOSIM, analysis of similarity; ITS, internal transcribed spacer; NMDS, non-metric multidimensional scaling; OTU, operational taxonomic unit