Figure 2

Pairwise variation (Vn/Vn + 1) analysis between the normalization factors (NFn and NFn + 1) was performed by the geNorm program to determine the optimal number of reference genes required for effective normalization and carried out for qPCR data normalization in leaves inoculated with low dose of Pseudomonas syringae pv. actinidiae inoculum (LDI), leaves inoculated with high dose of P. s. pv. actinidiae inoculum (HDI) and all samples combined together (Total).