Using Transcriptomics to Determine the Mechanism for the Resistance to Fusarium Head Blight of a Wheat-Th. elongatum Translocation Line
文献类型： 外文期刊
作者： Dai, Yi 1 ; Fei, Wenlin 1 ; Chen, Shiqiang 4 ; Shi, Juntao 1 ; Ma, Haigang 1 ; Li, Haifeng 5 ; Li, Jinfeng 1 ; Wang, Yonggang 1 ; Gao, Yujiao 1 ; Zhu, Jinghuan 6 ; Wang, Bingkui 6 ; Chen, Jianmin 1 ; Ma, Hongxiang 1 ;
作者机构： 1.Yangzhou Univ, Jiangsu Key Lab Crop Genom & Mol Breeding, Key Lab Plant Funct Genom Minist Educ, Jiangsu Key Lab Crop Genet & Physiol, Yangzhou 225009, Peoples R China
2.Yangzhou Univ, Joint Int Res Lab Agr & Agriprod Safety, Minist Educ China, Yangzhou 225009, Peoples R China
3.Yangzhou Univ, Jiangsu Coinnovat Ctr Modern Prod Technol Grain Cr, Yangzhou 225009, Peoples R China
4.Inst Agr Sci Lixiahe Reg Jiangsu, Yangzhou 225009, Peoples R China
5.Yangzhou Univ, Coll Biosci & Biotechnol, Yangzhou 225009, Peoples R China
6.Zhejiang Acad Agr Sci, Inst Crops & Nucl Technol Utilizat, Hangzhou 310021, Peoples R China
关键词： Fusarium head blight; wheat-Th. elongatum translocation line; transcriptome analysis; disease resistance pathway
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 17 期
页码：
收录情况： SCI
摘要： Fusarium head blight (FHB), caused by the Fusarium graminearum species complex, is a destructive disease in wheat worldwide. The lack of FHB-resistant germplasm is a barrier in wheat breeding for resistance to FHB. Thinopyrum elongatum is an important relative that has been successfully used for the genetic improvement of wheat. In this study, a translocation line, YNM158, with the YM158 genetic background carrying a fragment of diploid Th. elongatum 7EL chromosome created using Co-60-gamma radiation, showed high resistance to FHB under both field and greenhouse conditions. Transcriptome analysis confirmed that the horizontal transfer gene, encoding glutathione S-transferase (GST), is an important contributor to FHB resistance in the pathogen infection stage, whereas the 7EL chromosome fragment carries other genes regulated by F. graminearum during the colonization stage. Introgression of the 7EL fragment affected the expression of wheat genes that were enriched in resistance pathways, including the phosphatidylinositol signaling system, protein processing in the endoplasmic reticulum, plant-pathogen interaction, and the mitogen-activated protein kinase (MAPK) signaling pathway at different stages after F. graminearium infection. This study provides a novel germplasm for wheat resistance to FHB and new insights into the molecular mechanisms of wheat resistance to FHB.
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