OsDNR1 as a key regulator of rice resistance to 4‐hydroxyphenylpyruvate dioxygenase‐inhibiting herbicides

DULL NITROGEN RESPONSE 1 (OsDNR1) is a key gene in rice resistance to herbicides that target 4-hydroxyphenylpyruvate dioxygenase, which are phytotoxic due to their effects on homogentisic acid levels. Knocking out OsDNR1 leads to hydroxyphenylpyruvic acid accumulation in rice plants, thereby increasing homogentisic acid levels and conferring herbicide resistance.