DEGs under WD in Italia and Autumn Royal. As modified by Catacchio et al. (2019). A) Venn diagrams show down- and up-regulated genes between different water conditions. The comparison between OI and FI in It do not reveal any significant differentially expressed gene (DEG). B) Venn diagrams show down- and up-regulated genes between It and AR. The higher variation of gene expression between cultivars is depicted at WD (the number of DEG is underlined). AR: Autumn Royal; IT: Italia; WD: water deficit; FI: full irrigation; OI: over irrigation.