GWAS and multi-omics study reveal OsJAR2 associated jasmonate biosynthesis contributes to Southern rice black-streaked dwarf virus resistance in rice
Our study identifies a highly SRBSDV-resistant rice germplasm, offering valuable genetic resource for both resistance research and breeding programs. We demonstrate that rapid JA biosynthesis activation and coordinated defense gene expression form the molecular basis of resistance in this accession. Crucially, we pinpoint OsJAR2 as a novel functional resistance gene, with its associated resistant haplotype serving as a robust molecular marker for marker-assisted selection (MAS). These findings advance our understanding of SRBSDV resistance mechanisms and provide a genetic toolkit for developing elite, disease-resistant rice varieties.
Authors
- Runfeng Wang (ORCID: https://orcid.org/0000-0002-8212-3674)
- Shuai Nie (ORCID: https://orcid.org/0000-0003-0028-5504)
- Haiyong Gu
- Junliang Zhao
- Lixian Cui
- Zhanbiao Li (ORCID: https://orcid.org/0000-0001-8331-4168)
- Qi Liu (ORCID: https://orcid.org/0009-0008-6747-6085)
- Lian Zhou (ORCID: https://orcid.org/0000-0003-1790-4500)
- Jiansong Chen
- Bixia Qin
Institutions
- Rice Research Institute (CN)
- Guangdong Academy of Agricultural Sciences (CN)
- Guangxi Academy of Agricultural Science (CN)
- Ministry of Agriculture (FJ)
- Ministry of Agriculture and Rural Affairs (CN)
Publication Details
- Journal
- BMC Genomics
- Published
- 2025-10-29
- DOI
- https://doi.org/10.1186/s12864-025-12159-8
- Primary Topic
- Insect-Plant Interactions and Control
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Guangdong Academy of Agricultural Sciences
- Basic and Applied Basic Research Foundation of Guangdong Province