数字农科院2.0

Transcriptomics and virus-induced gene silencing identify defence-related genes during Ralstonia solanacearum infection in resistant and susceptible tobacco

文献类型： 外文期刊

作者： Xiao Z.;Liu Z.;Zhang H.;Yang A.;Cheng L.;Liu D.;Jiang C.;Yu S.;Yang Z.;Ren M.;Geng R.

作者机构：

关键词： Ralstonia solanacearum;Tobacco;Transcriptome;VIGS

期刊名称： Genomics

ISSN： 0888-7543

年卷期： 2024 年 116 卷 2 期

页码：

收录情况： SCIE（2024版）

摘要： Bacterial wilt (BW) caused by Ralstonia solanacearum is a globally prevalent bacterial soil-borne disease. In this study, transcriptome sequencing were subjected to roots after infection with the R. solanacearum in the resistant and susceptible tobacco variety. DEGs that responded to R. solanacearum infection in both resistant and susceptible tobacco contributed to pectinase and peroxidase development and were enriched in plant hormone signal transduction, signal transduction and MAPK signalling pathway KEGG terms. Core DEGs in the resistant tobacco response to R. solanacearum infection were enriched in cell wall, membrane, abscisic acid and ethylene terms. qRT-PCR indicated that Nitab4.5_0004899g0110, Nitab4.5_0004234g0080 and Nitab4.5_0001439g0050 contributed to the response to R. solanacearum infection in different resistant and susceptible tobacco. Silencing the p450 gene Nitab4.5_0001439g0050 reduced tobacco resistance to bacterial wilt. These results improve our understanding of the molecular mechanism of BW resistance in tobacco and solanaceous plants. © 2023

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