Bulk segregant analysis coupled with transcriptomics and metabolomics revealed key regulators of bacterial leaf blight resistance in rice

文献类型： 外文期刊

第一作者： Ma, Xiaozhi

作者： Ma, Xiaozhi;Zhu, Manshan;Liu, Wuge;Li, Jinhua;Liao, Yilong;Liu, Dilin;Jin, Mengya;Fu, Chongyun;Wang, Feng;Ma, Xiaozhi;Zhu, Manshan;Liu, Wuge;Li, Jinhua;Liao, Yilong;Liu, Dilin;Jin, Mengya;Fu, Chongyun;Wang, Feng;Ma, Xiaozhi;Zhu, Manshan;Liu, Wuge;Li, Jinhua;Liao, Yilong;Liu, Dilin;Jin, Mengya;Fu, Chongyun;Wang, Feng

作者机构：

关键词： Bacterial leaf blight; Rice; Disease resistance; Genetics; R genes

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.3； 五年影响因子：5.9 ）

ISSN： 1471-2229

年卷期： 2023 年 23 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundBacterial leaf blight (BLB) is a highly destructive disease, causing significant yield losses in rice (Oryza sativa). Genetic variation is contemplated as the most effective measure for inducing resistance in plants. The mutant line T1247 derived from R3550 (BLB susceptible) was highly resistant to BLB. Therefore, by utilizing this valuable source, we employed bulk segregant analysis (BSA) and transcriptome profiling to identify the genetic basis of BLB resistance in T1247.ResultsThe differential subtraction method in BSA identified a quantitative trait locus (QTL) on chromosome 11 spanning a 27-27.45 Mb region with 33 genes and 4 differentially expressed genes (DEGs). Four DEGs (P < 0.01) with three putative candidate genes, OsR498G1120557200, OsR498G1120555700, and OsR498G1120563600,0.01 in the QTL region were identified with specific regulation as a response to BLB inoculation. Moreover, transcriptome profiling identified 37 resistance analogs genes displaying differential regulation.ConclusionsOur study provides a substantial addition to the available information regarding QTLs associated with BLB, and further functional verification of identified candidate genes can broaden the scope of understanding the BLB resistance mechanism in rice.

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