Fig. 2

Co-expression network construction. a Clustering dendrogram of samples. Two outliers were excluded before subsequent analysis. The red line represented the threshold for removing outliers. b The scale-free fit index for soft-thresholding powers of 1–20. c The mean connectivity for 1–20 soft-thresholding powers. d Gene clustering dendrogram generated based on topological overlap matrix, together with the assigned merged module colors and the original colors. e Modules clustering dendrogram based on correlations of module eigengenes. The red line represented the merging threshold (0.25). Modules below this line would be merged