文献类型： 外文期刊
作者： Zhang, Yongli 1 ; Du, Pei 2 ; Xiong, Faqian 3 ; Zhang, Xiaojun 4 ; Song, Hui 1 ;
作者机构： 1.Qingdao Agr Univ, Coll Grassland Sci, Grassland Agrihusb Res Ctr, Qingdao, Peoples R China
2.Henan Acad Agr Sci, Ind Crops Res Inst, Key Lab Oil Crops Huang Huai Hai Plains, Henan Prov Key Lab Oil Crops Improvement,Minist Ag, Zhengzhou, Peoples R China
3.Guangxi Acad Agr Sci, Cash Crops Res Inst, Nanning, Peoples R China
4.Qingdao Agr Univ, Coll Agron, Qingdao, Peoples R China
关键词： Arachis duranensis; drought tolerance; protein-protein interaction; regulatory network; WRKY
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： WRKY transcription factor participates in plant growth and development and response to biotic and abiotic stresses. Arachis duranensis, a turfgrass, has high drought tolerance, yet little is known about AdWRKYs response to drought stress in A. duranensis. In this study, RNA-seq identified five AdWRKYs, including AdWRKY18, AdWRKY40, AdWRKY42, AdWRKY56, and AdWRKY64, which were upregulated under drought stress. Orthologous relationships between AdWRKYs and Arabidopsis WRKY were determined to predict the regulatory networks of the five AdWRKYs based on AtWRKYs. Additionally, protein-protein interactions were predicted using differentially expressed proteins from RNA-seq. The quantitative real-time PCR (qRT-PCR) results showed that AdWRKY40 was upregulated, while AdWRKY42, AdWRKY56, and AdWRKY64 were downregulated at different time-points under drought stress. The predicted regulatory networks showed that AdWRKY40 activates COR47, RD21, and RD29A expression under drought stress. Besides, AdWRKY56 regulated CesA8 under drought stress. Aradu.YIQ80 (NAC019) interacted with AdWRKY40, AdWRKY42, AdWRKY56, and AdWRKY64, while Aradu.Z5H58 (NAC055) interacted with AdWRKY42 and AdWRKY64 under drought stress. This study used Arabidopsis to assess AdWRKYs function and regulatory networks, providing a basis for understanding drought tolerance in A. duranensis.
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