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In the ongoing arms race between rice and Magnaporthe oryzae, the pathogen employs effectors to evade the immune response, while the host develops resistance genes to recognise these effectors and confer resistance. In this study, we identified a novel Pik allele, Pik-W25, from wild rice WR25 through bulked-segregant analysis, creating the Pik-W25 NIL (Near-isogenic Lines) named G9. Pik-W25 conferred resistance to isolates expressing AvrPik-C/D/E alleles. CRISPR-Cas9 editing was used to generate transgenic lines with a loss of function in Pik-W25-1 and Pik-W25-2, resulting in loss of resistance in G9 to isolates expressing the three alleles, confirming that Pik-W25-induced immunity required both Pik-W25-1 and Pik-W25-2. Yeast two-hybrid (Y
Qi et al. (Thu,) studied this question.