Fig. 2

Characterization of differentially expressed genes between YT and TT in each time point. A Box plots showing the number of DEGs (TY or TT-higher) occurred at each time point. B Heatmap showing expression profiles of DEGs at each time point for YT vs TT. 4448 DEGs were analyzed by hierarchical clustering. The heatmap was generated through k-means clustering algorithm with the row-wise Z-score result of gene expression in Cluster 3.0 software. 4448 DEGs were grouped into 10 distinct subclusters according to gene expression profiles. The color key representing the standardized gene expression levels from high (red) to low (blue). C Venn plots showing comparison of genes that were up-regulated or down-regulated before (CK) or after cold treatment