Expression of SlSRs in response to infection by B. cinerea . Four-week-old plants were inoculated by foliar spraying with spore suspension (2 × 105 spores/ml) of B. cinerea (filled bars) or with same volume of buffer as a mock inoculation control (open bars). Leaf samples were collected at indicated time points after inoculation for analysis of SlSR expression by qRT-PCR using gene-specific primers. Relative expression levels were calculated after normalization with actin transcript values. Data presented are the means ± SD from three independent experiments and different letters above the columns indicate significant differences at p?<?0.05 level between the pathogen-inoculated and mock-inoculated plants.