ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2025
Exploring resistance mechanisms and identifying QTLs for brown planthopper in tropical and subtropical rice (Oryza sativa L.) germplasm.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Article
- Integrating image-based phenotyping and GWAS to map resistance to spittlebug nymphs in interspecific Urochloa grasses.G3 (Bethesda, Md.) · 2026Article
- Genetic Interaction Between Bph50 and Bph51 Confers Resistance to Brown Planthopper in Rice.Rice (New York, N.Y.) · 2026Article
- Plant resistance: scientific basis and latest research progress.Frontiers in plant science · 2026Review
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Authors and funding
19 authors.
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Abstract
key messageA total of 4006 tropical and subtropical rice germplasms were screened for brown planthopper resistance, and the resistance mechanisms of 63 highly resistant accessions were characterized. This led to the designation of three novel resistance QTLs: Bph47, Bph48, and Bph49. The brown planthopper (BPH) is a significant piercing-sucking pest of rice plants that causes widespread destruction globally. Discovering new germplasms and genes for BPH resistance is essential for enhancing genetic diversity in rice breeding. In this study, 4006 rice accessions from tropical and subtropical regions were screened for BPH resistance at the seedling stage, and 63 accessions with high-resistant were identified. Of these, 59 accessions exhibited high resistance to BPH at the adult stage. The 63 accessions displayed widespread variation in key agronomic traits, though most were generally unsatisfactory. Assessments of antixenosis, antibiosis, and tolerance indicated diverse resistance mechanisms in the 63 accessions, with the majority (39/63) demonstrating both antixenosis and antibiosis. Microscopic observations and physiological assessments revealed significant differences in vascular bundle structure, fiber content, and activity of defense-related enzymes between the 63 high-resistance and 27 susceptible ones. Furthermore, correlation analysis highlighted a substantial positive relationship between BPH resistance and parameters such as rice trypsin inhibitor (RTI) levels and width of the sclerenchyma layer (WSL). Genetic analysis of F
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