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Characterization of the WAK Gene Family Reveals Genes for FHB Resistance in Bread Wheat (Triticum aestivum L.)

文献类型： 外文期刊

作者： Xia, Xiaobo 1 ; Zhang, Xu 1 ; Zhang, Yicong 1 ; Wang, Lirong 1 ; An, Qi 1 ; Tu, Qiang 1 ; Wu, Lei 1 ; Jiang, Peng 1 ; Zhang, Peng 1 ; Yu, Lixuan 1 ; Li, Gang 2 ; He, Yi 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, CIMMYT JAAS Joint Ctr Wheat Dis, Key Lab Germplasm Innovat Downstream Huaihe River, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China

2.Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Peoples R China

3.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Wheat Res Inst, Mianyang 621010, Sichuan, Peoples R China

关键词： wheat; wall-associated kinase; TaWAK; gene family; gene expression; Fusarium head blight; resistance

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）

ISSN：

年卷期： 2022 年 23 卷 13 期

页码：

收录情况： SCI

摘要： Wall-associated kinases (WAKs) are important receptor-like proteins that play major roles in plant defense against pathogens. Fusarium head blight (FHB), one of the most widespread and devastating crop diseases, reduces wheat yield and leads to quality deterioration. Although WAK gene families have been studied in many plants, systematic research on bread wheat (Triticum aestivum) and its role in FHB resistance, in particular, is lacking. In this study, we identified and characterized 320 genes of the TaWAK family in wheat distributed across all chromosomes except 4B and divided them into three phylogenetic groups. Duplication and synteny analyses provided valuable information on the evolutionary characteristics of the TaWAK genes. The gene expression pattern analysis suggested that TaWAK genes play diverse roles in plant biological processes and that at least 30 genes may be involved in the response to Fusarium infection in wheat spikes, with most of the genes contributing to pectin- and chitin-induced defense pathways. Furthermore, 45 TaWAK genes were identified within 17 hcmQTLs that are related to wheat FHB resistance. Our findings provide potential candidate genes for improving FHB resistance and insights into the future functional analysis of TaWAK genes in wheat.

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