Fig. 5

Heatmaps of the abundance of transcripts for studied genes and their variations with water deficit. The abundance of transcripts for the genes associated with abscisic acid was recorded in the leaves and roots of nine grapevine genotypes during a water-deficit treatment. Transcript abundance at day 1 after withholding irrigation (non-stressed plants) (a), green shade indicates the level of expression relative to the lowest value (n = 3). Transcript abundance changes from day 1 to day 4 after withholding irrigation (water-stressed plants) (b), the blue and red shades indicate the extent of gene repression and induction respectively (n = 3). Blocks of squares show the level of gene expression in the leaves and roots of nine different grapevine genotypes (c) for each gene studied