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Transcriptional profiling reveals a critical role of GmFT2a in soybean staygreen syndrome caused by the pest Riptortus pedestris

文献类型： 外文期刊

作者： Wei, Zhongyan 1 ; Guo, Wenbin 1 ; Jiang, Shanshan 3 ; Yan, Dankan 4 ; Shi, Yan 5 ; Wu, Bin 3 ; Xin, Xiangqi 3 ; Chen, Li 6 ; Cai, Yupeng 6 ; Zhang, Hehong 1 ; Li, Yanjun 1 ; Huang, Haijian 1 ; Li, Junmin 1 ; Yan, Fei 1 ; Zhang, Chuanxi 1 ; Hou, Wensheng 6 ; Chen, Jianping 1 ; Sun, Zongtao 1 ;

作者机构： 1.Ningbo Univ, Inst Plant Virol, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Biotechnol Plant Protect MARA & Zhejiang P, Ningbo 315211, Peoples R China

2.James Hutton Inst, Informat & Computat Sci, Dundee DD2 5DA, Scotland

3.Shandong Acad Agr Sci, Inst Plant Protect, Shandong Prov Key Lab Plant Virol, Jinan 250100, Peoples R China

4.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei 230031, Peoples R China

5.Henan Agr Univ, Coll Plant Protect, Zhengzhou 450002, Peoples R China

6.Chinese Acad Agr Sci, Inst Crop Sci, Natl Ctr Transgen Res Plants, Beijing 100081, Peoples R China

关键词： defense response; photoperiod flowering; Riptortus pedestris; soybean; soybean staygreen syndrome

期刊名称：NEW PHYTOLOGIST （ 影响因子：10.323； 五年影响因子：10.768 ）

ISSN： 0028-646X

年卷期：

页码：

收录情况： SCI

摘要： Soybean staygreen syndrome, characterized by delayed leaf and stem senescence, abnormal pods, and aborted seeds, has recently become a serious and prominent problem in soybean production. Although the pest Riptortus pedestris has received increasing attention as the possible cause of staygreen syndrome, the mechanism remains unknown. Here, we clarify that direct feeding by R. pedestris, not transmission of a pathogen by this pest, is the primary cause of typical soybean staygreen syndrome and that critical feeding damage occurs at the early pod stage. Transcriptome profiling of soybean indicated that many signal transduction pathways, including photoperiod, hormone, defense response, and photosynthesis, respond to R. pedestris infestation. Importantly, we discovered that members of the FLOWERING LOCUS T (FT) gene family were suppressed by R. pedestris infestation, and overexpression of floral inducer GmFT2a attenuates staygreen symptoms by mediating soybean defense response and photosynthesis. Together, our findings systematically illustrate the association between pest infestation and soybean staygreen syndrome and provide the basis for establishing a targeted soybean pest prevention and control system.

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