Transposon Polymorphism and Its Potential Impacts on Brown Planthopper (Nilaparvata lugens Stål) Resistance in Rice (Oryza sativa L.)

The brown planthopper (BPH) is a major pest in rice cultivation, significantly affecting both yield and quality; accordingly, exploring utilizing anti-herbivory genes to enhance rice’s inherent resistance BPH can be an effective strategy for mitigating infestation. effects of transposon insertion polymorphisms (TIPs) on insect pests have not been reported. In this study, through the identification sites susceptible resistant varieties, total six possible candidate were potentially located. Among them, segment LTR/Copia was verified promoter LOC_Os04g02720, which carries cis-acting element binding site involved abscisic acid reaction. Quantitative analysis showed significant difference gene expression between insect-resistant insect-susceptible varieties (p < 0.05). This study provides insights into functional transposons population polymorphisms, whereas offers theoretical foundation development varieties.