Table 1.

Significantly altered processes or protein families with corresponding P values* indicated by changes in gene expression level in cv. Igor and Santé at 0.5 h (0.5) and 12 h (12) after potato virus Y^NTN (PVY^NTN) inoculation.

Cultivar/time	Up‐regulated processes/protein families	P value	Down‐regulated processes/protein families	P value
Igor 0.5	Photosynthesis light reactions	0	WRKY domain transcription factor family	0
	Carbonic anhydrases	0
Santé 0.5	Photosynthesis light reactions	0	Stress responses	2 × 10−9
	Plastid ribosomal proteins	4 × 10−16	Secondary metabolism: simple phenols	3 × 10−7
	Tetrapyrrole synthesis	7 × 10−15
Igor 12	Signalling	2 × 10−6	Photosynthesis reactions	1 × 10−7
	WRKY domain transcription factor family	1 × 10−7	Invertase/pectin methylesterase inhibitor family	9 × 10−5
Santé 12	PR proteins	0	Photosynthesis	8 × 10−7
	Biotic stress responses	1 × 10−13
	Polyamine metabolism	3 × 10−11
	Cell wall degradation: pectate lyases and polygalacturonases	2 × 10−7

^* Wilcoxon rank sum test was carried out to predict BINs that exhibit different behaviour in terms of expression profile compared with all the other remaining BINs (Usadel et al., 2005).