Functional analysis of the CaPIPLC5 gene in the regulation of the fertility restoration in pepper
文献类型： 外文期刊
作者： Ma, Yan 1 ; Wei, Ming 2 ; Zhang, Tao 1 ; Wang, Yuhang 1 ; Duan, Panpan 2 ; Wang, Lina 1 ; Kong, Weifu 1 ; Zhang, Gaoyuan 1 ; Wei, Bingqiang 1 ;
作者机构： 1.Gansu Agr Univ, Coll Hort, Lanzhou, Peoples R China
2.Vegetable Inst, Gansu Acad Agr Sci, Lanzhou, Peoples R China
关键词： Cytoplasmic male sterility; Fertility restoration; Pepper; Phospholipase C; Transcription factor
期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：5.4； 五年影响因子：5.5 ）
ISSN： 0031-9317
年卷期： 2024 年 176 卷 4 期
页码：
收录情况： SCI
摘要： Cytoplasmic male sterility (CMS) is a very important factor to produce hybrid seeds, and the restoration of fertility involves the expression of many fertility-related genes. Our previous study showed that the expression of CaPIPLC5 was significantly up-regulated in pepper restorer accessions and minimally expressed in sterile accessions, speculating that CaPIPLC5 is related to the restoration of fertility. In this study, we further validated the function of CaPIPLC5 in the restoration of fertility. The results showed that CaPIPLC5 was specifically expressed in the anthers of the restorer accessions with the subcellular localization in the cytoplasm. Furthermore, the expression of CaPIPLC5 was significantly higher in restorer lines and restorer combinations than that in CMS lines and their maintainer lines. Silencing CaPIPLC5 led to the number of pollen decreased, pollen grains wrinkled, and the ratio of pollen germination reduced. In addition, the joint analysis of Yeast One-Hybrid (Y1H) and Dual-Luciferase (dual-LUC) assays suggested that transcription factors such as CaARF5, CabZIP24 and CaMYB-like1, interacted with the promoter regions of CaPIPLC5, which regulated the expression of CaPIPLC5. The present results provide new insights into the study of CaPIPLC5 involved in the restoration of fertility in pepper.
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