Fig. 4

Functional characteristics of differential bacteria between core and non-core rhizosphere soil microbiotas. a Environmental factors (K, ECsw, Mg, Cu, Fe, Zn, Mn, P, AN, organics and pH) significantly explained the observed compositional variation in the microbial community (genus level) in rhizosphere soil samples. b KEGG pathways compared between core and non-core regions. Pathways with a significant difference in |z score|≥ 1.7 are shown. c Differential enrichment of MAG genera between regions was identified using a Wilcoxon rank sum test with an adjusted P value of 0.05. Only the top 10 enriched MAG genera are shown in the figure. The terpene cluster number in each genus is shown on the right. d A network was constructed by correlation of MAGs (purple nodes), monoterpenes (blue triangles) and soil properties (green square). Node size corresponds to the degree of each node. The thickness and colour of the edges denote strength and significance, respectively. Solid and dashed edges indicate positive and negative correlations, respectively