Fig. 14

Heat map representation for the organ-specific RNA helicase gene expression profiles in different sweetpotato varieties. YL, Young leaves, L, leaves, S, stems and R, roots. The expression levels of genes are presented using fold-change values transformed to Log² format. The Log² (fold-change values) and the color scale are shown at the bottom of heat map. For all the columns labeled with “*,” “**,” and “***” indicate significant differences at P < 0.05, P < 0.01, and P < 0.001, respectively, compared with the YL