FvWRKY50 is an important gene that regulates both vegetative growth and reproductive growth in strawberry
文献类型： 外文期刊
作者： Chen, Yating 1 ; Liu, Liping 1 ; Feng, Qianqian 1 ; Liu, Chuang 1 ; Bao, Yujuan 1 ; Zhang, Nan 1 ; Sun, Ronghui 1 ; Yin, Zhaonan 1 ; Zhong, Chuanfei 1 ; Wang, Yuanhua 3 ; Li, Qian 1 ; Li, Bingbing 1 ;
作者机构： 1.China Agr Univ, Coll Hort, Dept Pomol, Beijing 10093, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing Engn Res Ctr Strawberry, Beijing 100093, Peoples R China
3.Jiangsu Vocat Coll Agr & Forestry, Dept Agron & Hort, Zhenjiang 212400, Jiangsu, Peoples R China
4.Engn & Tech Ctr Modern Hort, Zhenjiang 212400, Jiangsu, Peoples R China
期刊名称：HORTICULTURE RESEARCH （ 影响因子：8.7； 五年影响因子：9.0 ）
ISSN： 2662-6810
年卷期： 2023 年 10 卷 7 期
页码：
收录情况： SCI
摘要： The WRKY transcription factors play important roles in plant growth and resistance, but only a few members have been identified in strawberry. Here we identified a WRKY transcription factor, FvWRKY50, in diploid strawberry which played essential roles in strawberry vegetative growth, and reproductive growth. Knocking out FvWRKY50 by genome editing accelerated flowering time and leaf senescence but delayed anthocyanin accumulation in fruit. Further analysis showed that FvWRKY50 acted as a transcriptional repressor to negatively regulate the expression of flowering- and leaf senescence-related genes, including FvFT2, FvCO, FvFT3, and FvSAUR36. Notably, FvWRKY50 directly upregulated the expression of FvCHI and FvDFR by binding their promoter under normal conditions, but at low temperature FvWRKY50 was phosphorylated by FvMAPK3 and then induced protein degradation by ubiquitination, delaying anthocyanin accumulation. In addition, the homozygous mutant of FvWRKY50 was smaller while the biallelic mutant showed normal size. These new findings provide important clues for us to further reveal the regulatory mechanisms of strawberry growth and fruit ripening
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