Fig. 6

The heatmap of genes expression (a) and the correlation analysis between the accumulation of DHM and the expression of biosynthesis related genes (b) in different leaf stages and tissues of vine tea. R: roots, S: stems, L1-L3: young leaves, L4- L5: old leaves. Pearson correlation coefficients were calculated and used to generate a heatmap (B), Each square indicates the Pearson’s correlation coefficient of a pair of data, and the value for the correlation coefficient is represented by the intensity of the blue or red color, as indicated on the color scale