In our study, all detected MYB genes were downregulated both at 1 and 3 dpi in ∆xanA-treated leaves relative to PXO99A-treated leaves, while the varied expression patterns of MYB-related genes were revealed at 1 and 3 dpi in ∆imp-treated rice leaves relative to those in PXO99A-treated leaves(Fig. 7 and Table S7), suggesting that XanA and Imp play crucial but distinct roles in modulation of MYB TF-mediated defense responses against PXO99A infection. The gene discussed is IMPA1; the disease is infection.