Functional analysis of Ornithine decarboxylase in manipulating the wing dimorphism in Nilaparvata lugens (Stål) (Hemiptera: Delphacidae)

•NlODC and its regulated polyamines were involved in the wing differentiation of BPH.•NlODC may act through the juvenile hormone (JH) pathway to regulate wing differentiation in BPH.•This finding contributes to the study of mechanisms regulating phenotypic plasticity in insects.