Fig. 2

Expression analysis of the DEGs between CC and CC + SA roots. a-b Hierarchical cluster analysis. Different columns in the figure represent different samples, and different rows represent different genes. The colors from blue to yellow indicate gene expression from low to high, respectively. c Fragments per kilobase of transcript per million mapped reads (FPKM) boxplot. d MA plot. e Volcano plot. Each point in the MA plot and volcano plot represents a gene. The green points represent downregulated genes, the red points represent upregulated genes, and the black points represent unchanged genes