Fig. 2
Gene expression profiles and differential expression genes identified in the TT, TE, and TP grafting combinations. a Total number of expressed genes in each of the three graftings. b Pearson correlation coefficient heatmap depicting the relationship among the samples from the TT, TE, and TP graftings. c Venn diagram showing the unique and overlapping expressed genes among the TT, TE, and TP graftings. d Bar plot indicating the number of upregulated and downregulated DEGs in each grafting, comparing TT vs TE, TT vs TP, and TE vs TP. e–g Venn diagrams illustrating the overlap of DEGs in comparisons of TP vs TT, TE vs TT, and TP vs TE, respectively. DEGs were identified based on the criteria of |log2 (fold change)|> 2 and q value < 0.001