A comprehensive analysis of the WRKY family in soybean and functional analysis of GmWRKY164-GmGSL7c in resistance to soybean mosaic virus
文献类型： 外文期刊
作者： Zhao, Zhihua 1 ; Wang, Rongna 1 ; Su, Weihua 1 ; Sun, Tianjie 1 ; Qi, Mengnan 1 ; Zhang, Xueyan 1 ; Wei, Fengju 1 ; Yu, Zhouliang 2 ; Xiao, Fuming 3 ; Yan, Long 4 ; Yang, Chunyan 4 ; Zhang, Jie 1 ; Wang, Dongmei 1 ;
作者机构： 1.Hebei Agr Univ, Coll Life Sci, State Key Lab North China Crop Improvement & Regul, Hebei Key Lab Plant Physiol & Mol Pathol, Baoding 071001, Peoples R China
2.Yunnan Univ, Sch Life Sci, Kunming 650500, Peoples R China
3.Handan Municipal Acad Agr Sci, Handan 056001, Hebei, Peoples R China
4.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050031, Peoples R China
关键词： Soybean; SMV; WRKY gene family; Callose deposition
期刊名称：BMC GENOMICS （ 影响因子：3.5； 五年影响因子：4.1 ）
ISSN： 1471-2164
年卷期： 2024 年 25 卷 1 期
页码：
收录情况： SCI
摘要： Background Soybean mosaic disease caused by soybean mosaic virus (SMV) is one of the most devastating and widespread diseases in soybean producing areas worldwide. The WRKY transcription factors (TFs) are widely involved in plant development and stress responses. However, the roles of the GmWRKY TFs in resistance to SMV are largely unclear. Results Here, 185 GmWRKYs were characterized in soybean (Glycine max), among which 60 GmWRKY genes were differentially expressed during SMV infection according to the transcriptome data. The transcriptome data and RT-qPCR results showed that the expression of GmWRKY164 decreased after imidazole treatment and had higher expression levels in the incompatible combination between soybean cultivar variety Jidou 7 and SMV strain N3. Remarkably, the silencing of GmWRKY164 reduced callose deposition and enhanced virus spread during SMV infection. In addition, the transcript levels of the GmGSL7c were dramatically lower upon the silencing of GmWRKY164. Furthermore, EMSA and ChIP-qPCR revealed that GmWRKY164 can directly bind to the promoter of GmGSL7c, which contains the W-box element. Conclusion Our findings suggest that GmWRKY164 plays a positive role in resistance to SMV infection by regulating the expression of GmGSL7c, resulting in the deposition of callose and the inhibition of viral movement, which provides guidance for future studies in understanding virus-resistance mechanisms in soybean.
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