Fig. 4

Co-expression network showing gypenoside-related module identified by WGCNA. A Hierarchical clustering tree (cluster dendrogram) showing 16 modules of co-expressed genes with color annotation. B Correlation between each module and genes expressed in different tissues. Pearson correlation coefficients and p values (in brackets) are indicated in the grid. A low to high degree of Pearson correlation coefficient between a specific module and the tissue is indicated by a change in color from blue to red