The expression of MYB-related TFs was observed after PXO99A infection in CBB23 vs. JG30; OsMYB4 (Os04G0517100) and R2R3-MYB (Os01G0874300 and Os12G0567300) were observed to be upregulated in CBB23 compared with JG30 after PXO99A infection. This evidence concerns the gene MYB and infection.