Identification of key genes and transcription factors in ageing Arabidopsis papilla cells by transcriptome analysis
文献类型： 外文期刊
作者： Ye, Hong 5 ; Ren, Fei 1 ; Guo, Haoyu 3 ; Guo, Liping 4 ; Bai, Jianfang 2 ; Wang, Yukun 5 ;
作者机构： 1.Shaoguan Univ, Sch Agr Sci & Engn, 288 Daxue Rd, Shaoguan 512000, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Beijing Engn Res Ctr Hybrid Wheat, Beijing 100097, Peoples R China
3.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
4.Beijing Forestry Univ, Sch Landscape Architecture, Beijing 100083, Peoples R China
5.Nara Inst Sci & Technol, Div Biol Sci, Ikoma 6300192, Japan
关键词： Programmed cell death; Papilla cell; Floral organ; Transcriptome; DEGs
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）
ISSN： 0981-9428
年卷期： 2020 年 147 卷
页码：
收录情况： SCI
摘要： Programmed cell death (PCD) play essential roles in plant growth and development. Stigmatic papilla cells form an indispensable organ for plant reproduction. The lifetime of papilla cells is tightly controlled, and the developmental PCD (dPCD) process is involved in papilla cell death. Hence, papilla cell death is a good model for studying on PCD process. In this study, the dPCD signal was visualized in dying papilla cells by detecting the GUS signal of the PCD-related reporter gene BIFUNCTIONAL NUCLEASE 1 (BFN1). We found that the GUS was not expressed at young stage, but strongly expressed in papilla cells at the ageing stage, indicating the PCD process was triggered to terminate the papilla cell fate. Given this, the RNA-Seq data set, which covered the information of the whole lifespan of papilla cells, was analyzed aiming to understand which genes and pathways were involved in papilla cell death. 37 differential expressed genes (DEGs) were isolated. Moreover, the pathways related to energy production and transportation, autophagy, and plant hormone signal transduction were considered as the key pathways involved in the papilla cell death. 9 types, total of 104 transcriptional factors (TFs) were identified as well. Finally, a putative working model of papilla cell death was integrated. The findings herein will enrich the knowledge of the dPCD-mediated pathway in regulating plant organ/tissue growth, development, senescence, and death. Our study will provide some referential gene resources for studying on the dPCD in other plant organs or tissues.
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