SFRP4 and infection: In the current transcriptome analysis, WRKY33/PP2C genes (Solyc09g014990 and Solyc07g040990) associated with pathogen infection, genes associated with plant hormones, such as ethylene receptors (Solyc06g053710 and Solyc09g075440), an ethylene-responsive transcription factor 1 (Solyc09g089930), serine/threonine-protein kinase SRK2 (Solyc08g077780), and an abscisic acid (ABA) receptor in the PYR/PYL family (Solyc08g076960), were significantly up-regulated (Table 4).