文献类型： 外文期刊

作者： Wu, Baowei ¹ ; Zhang, Xiaoyu ² ; Zhao, Jialiang ¹ ; Zeng, Bohong ¹ ; Cao, Zhibin ¹ ;

作者机构： 1.Jiangxi Acad Agr Sci, Jiangxi Superrice Res & Dev Ctr, Natl Engn Res Ctr Rice, Jiangxi Prov Key Lab Rice Germplasm Innovat & Bree, Nanchang 330200, Peoples R China

2.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China

3.Huazhong Agr Univ, Natl Ctr Plant Gene Res Wuhan, Hubei Hongshan Lab, Wuhan 430070, Peoples R China

关键词： MiRNA; Bacterial leaf streak; miRNA-seq; RNA-seq; miRNA-mRNA regulatory network

期刊名称：BMC GENOMICS （ 影响因子：3.7； 五年影响因子：4.2 ）

ISSN： 1471-2164

年卷期： 2025 年 26 卷 1 期

页码：

收录情况： SCI

摘要： Background Bacterial leaf streak (BLS) is a bacterial disease that severely affects rice leaves, leading to significant yield reductions. microRNAs (miRNAs) are short non-coding RNAs extensively involved in the growth, development, and stress responses of plants and animals. However, miRNAs that regulate the response of rice to bacterial leaf streak are still relatively scarce.ResultsThe indica rice variety Dular exhibits resistance to BLS, whereas the variety 9311 is highly susceptible to the disease. By conducting miRNA sequencing and transcriptome sequencing on both Dular and 9311 before and after BLS inoculation, we identified 19 miRNAs that were significantly downregulated at both 12 and 24 h post-inoculation in Dular, and 9 miRNAs that were significantly upregulated at the same time points in 9311. Additionally, through degradome sequencing, we identified 23 miRNA- mRNA regulatory modules that likely play crucial roles in rice resistance to BLS, and 4 miRNA- mRNA regulatory modules that may be important in rice susceptibility to the disease.DiscussionCurrent studies on rice disease resistance miRNAs primarily focus on those involved in resistance to rice blast and bacterial blight, with the miRNA-target mRNA regulatory mechanisms for BLS remaining unclear. This study has identified miRNA-mRNA modules that may play significant roles in rice responses to BLS, contributing to the understanding of the miRNA regulatory network involved in rice defense against BLS infection.