VviEDR1 regulates powdery mildew-responsive genes in grapevine. The Venn diagrams showing the overlap between the powdery mildew-induced and the VviEDR1-chi-induced gene sets at 2 dpi (A) and 6 dpi (B), and the red oval indicates the set of VviEDR1-chi&pm-upregulated genes used for the majority of the analyses; C) Venn diagrams showing the VviEDR1-chi&pm-upregulated genes set at 2 and 6 dpi; D) Gene Ontology (GO) enrichment analysis of the genes in (C); E) Heatmap showing the part of genes in VviEDR1-chi&pm-upregulated genes set, the value is normalized by z_score method; the free SA (F) and ethylene (G) content of VviEDR1-chi and WT at 14 dpi. Each data point represents the mean ± SD of triple biological replicates. Different letters above the bars indicate significant differences (P < 0.05), determined by Student's t test.