Comprehensive Phosphoproteomic Analysis of Pepper Fruit Development Provides Insight into Plant Signaling Transduction
文献类型： 外文期刊
作者： Liu, Zhoubin 1 ; Lv, Junheng 2 ; Liu, Yuhua 2 ; Wang, Jing 2 ; Zhang, Zhuqing 3 ; Chen, Wenchao 3 ; Song, Jingshuang 2 ;
作者机构： 1.Hunan Agr Univ, Coll Hort, Changsha 410128, Peoples R China
2.Hunan Univ, Longping Branch, Grad Sch, Changsha 410125, Peoples R China
3.Hunan Acad Agr Sci, Vegetable Inst, Changsha 410125, Peoples R China
关键词： abscisic acid; ethylene; fruit development; kinase; phosphorylation; phosphoproteome; pepper
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN：
年卷期： 2020 年 21 卷 6 期
页码：
收录情况： SCI
摘要： Limited knowledge is available for phosphorylation modifications in pepper (Capsicum annuum L.), especially in pepper fruit development. In this study, we conducted the first comprehensive phosphoproteomic analysis of pepper fruit at four development stage by Tandem Mass Tag proteomic approaches. A total of 2639 unique phosphopeptides spanning 1566 proteins with 4150 nonredundant sites of phosphorylation were identified, among which 2327 peptides in 1413 proteins were accurately quantified at four different stages. Mature Green (MG) to breaker stage showed the largest number of differentially expressed phosphoproteins and the number of downregulated phosphoproteins was significantly higher than that of upregulated after MG stage. Twenty seven phosphorylation motifs, including 22 pSer motifs and five pThr motifs and 85 kinase including 28 serine/threonine kinases, 14 receptor protein kinases, six mitogen-activated protein kinases, seven calcium-dependent protein kinases, two casein kinases, and some other kinases were quantified. Then the dynamic changes of phosphorylated proteins in ethylene and abscisic acid signaling transduction pathways during fruit development were analyzed. Our results provide a cascade of phosphoproteins and a regulatory network of phosphorylation signals, which help to further understand the mechanism of phosphorylation in pepper fruit development.
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