FIGURE 3.

Principal component analysis of transcriptomic responses to Botrytis cinerea infection in leaves of control and BABA-primed tomato plants. PCA was performed using the Affymetrix signals from the 7767 probe sets remaining after initial filtering. Each data point represents a single RNA sample, collected from a pool of 16 inoculation sites from two leaves each from two independent plants. Colours are used to identify treatment and the different shapes indicate time points after inoculation.