数字农科院2.0

Transcriptomic Comparison of Rice lncRNAs in Response to Feeding by Brown Planthopper Populations with Different Virulence

文献类型： 外文期刊

作者： Yaxuan Wang;Xinfeng Wang;Kunjie Zhang;Jing Xiao;Fang Liu;Houhong Yang;Yubiao Cai;Fengxiang Lai;Qiang Fu;Pinjun Wan

作者机构：

关键词： brown planthopper and rice interaction;jasmonic acid;strand-specific lncRNA-seq;virulence

期刊名称： International Journal of Molecular Sciences

ISSN： 1661-6596

年卷期： 2025 年 26 卷 8 期

页码：

收录情况： SCIE（2025版）

摘要： The brown planthopper (BPH) is one of the major rice pests causing significant damage to rice production worldwide, due to its high reproductive capacity and strong migratory ability. A series of BPH-resistant rice varieties have been developed, but the durability of effective resistance is constrained by the evolution of BPH virulence, requiring in-depth insights into resistance mechanisms. In this paper, we used strand-specific lncRNA-seq to characterize the lncRNA regulatory mechanisms on rice response to BPH infestation. Overall, 4321 lncRNAs were identified, 60 of which were significantly upregulated in response to BPH infestation, specifically differing between BPH populations with variable virulence. Differential expression analysis and qRT-PCR validation showed that these lncRNAs are involved in the regulation of several defense pathways, including jasmonic acid signaling and flavonoid biosynthesis, with their distinct roles in resistant and susceptible rice varieties. Notably, lncRNAs like LNC_002533 were found to be negatively correlated with flavonoid biosynthesis, suggesting a potential role in modulating rice defense responses. In contrast, LNC_001986 and LNC_000397 were positively correlated with genes involved in glutathione metabolism, which may be associated with enhanced resistance. These findings highlight the critical regulatory functions of lncRNAs in rice-BPH interactions and provide a molecular framework for improving rice resistance through targeted genetic engineering. This study significantly contributes to functional genomics by elucidating lncRNA-mediated regulatory mechanisms and offers promising avenues for developing durable pest-resistant rice varieties.

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