Fig. 4

Correlation plot of principal components (PCs) 1 to 8 of the VOC dataset with PC1 of each dataset (soil ionome, soil microbiome, root microbiome, soil metabolome, rhizosphere chemicals, and soil physics). Proportion in parentheses represents the contribution ratio in each PC1. Significant, false discovery rate (FDR) < 0.05. *FDR < 0.05, **FDR < 0.01 and ***FDR < 0.001.