Table 2. Genes from wild grapevine species postulated to be involved in resistance to the powdery mildew fungus Erysiphe necator.

Gene	Description	Vitis species	Function and phenotype	References
VaEDS1	Enhanced Disease Susceptibility ortholog	V. aestivalis ‘Norton’	Defense pathway regulator – complements Arabidopsis eds1 mutant. Constitutively high expression in V. aestivalis resistant genotype and regulated by SA and PM	41,49
VpPR10.1	Pathogenesis-related protein 10	V. pseudoreticulata ‘Baihe-35-1’	Antifungal activity. Increases resistance to PM in agroinfiltrated grapevine leaves	71
VpALDH2B4	Aldehyde dehydrogenase	V. pseudoreticulata ‘Baihe-35-1’	Activation of SA signaling? Enhanced resistance to PM when overexpressed in Arabidopsis	43
VpWRKY1	WRKY domain Transcription factor	V. pseudoreticulata ‘Baihe-35-1’	Transcriptional activator of defense-related genes. Enhanced resistance to PM when overexpressed in Arabidopsis	42
VpRFP1	C4C4-type RING finger protein	V. pseudoreticulata ‘Baihe-35-1’	Transcriptional activator of defense-related genes? Enhanced resistance to PM when overexpressed in Arabidopsis	45
VpEIRP1	E3 ubiquitin ligase Erysiphe necator-induced C3HC4 RING finger protein	V. pseudoreticulata ‘Baihe-35-1’	Ubiquitination and degradation of a negative transcriptional regulator of defense? Enhanced resistance to PM when overexpressed in Arabidopsis	44