Fig. 5From: Root proteomic and metabolic analyses reveal specific responses to drought stress in differently tolerant grapevine rootstocksEffect of WS on metabolite levels in the root tissue of 101.14 and M4 rootstock genotypes. The clustering analysis was performed with PermutMatrix graphical interface after Z-score normalization of the values. Pearson’s distance and Ward’s algorithm were used for the analysis. Each coloured cell represents the value of the normalized WS/Control ratio, according to the colour scale at the bottom of the figure. Red increased levels, green: decreased levels. Black: identified metabolites not showing significant variation at the Student’s t-test (p-value < 0.05)Back to article page