Fig. 5From: Impacts of continuous cropping on the rhizospheric and endospheric microbial communities and root exudates of Astragalus mongholicusAnalysis of metabolomics profiles in the rhizosphere soil of A. mongholicus planted under continuous cropping (Field II) and non-continuous cropping (Field I). A PCA plot of the metabolite profiles in rhizosphere soils from Field I and Field II obtained via GC–MS. The Adonis test had a p-value = 0.003). B The top 10 (top 4% of 236 total compounds) compounds sorted by their respective loading variable importance (in descending order) from the PCA of the two rhizosphere soil data sets. C The top 35 marker compounds were identified through a random forest classification of their relative abundances in the rhizosphere soil metabolomics profiles of A. mongholicus grown in Field I and Field II. The marker compounds are ranked in descending order of importance with respect to the accuracy of the modelBack to article page