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Transcriptomics and Genomics Analysis Uncover the Differentially Expressed Chlorophyll and Carotenoid-Related Genes in Celery

文献类型： 外文期刊

作者： Song, Xiaoming 1 ; Li, Nan 2 ; Zhang, Yingchao 2 ; Liang, Yi 3 ; Zhou, Rong 4 ; Yu, Tong 2 ; Shen, Shaoqin 2 ; Feng, Shuyan 2 ; Zhang, Yu 2 ; Li, Xiuqing 5 ; Lin, Hao 1 ; Wang, Xiyin 2 ;

作者机构： 1.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Ctr Informat Biol, Chengdu 610054, Peoples R China

2.North China Univ Sci & Technol, Sch Life Sci, Ctr Genom & Bio Comp, Tangshan 063210, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Key Lab Biol & Genet Improvement Hort Crops North, Beijing 100097, Peoples R China

4.Aarhus Univ, Dept Food Sci, DK-8200 Aarhus, Denmark

5.Fredericton Res & Dev Ctr, Agr & Agri Food Canada, Fredericton, NB E3B 4Z7, Canada

关键词： celery; chlorophyll; carotenoid; gene duplication; expression pattern; regulatory network

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）

ISSN：

年卷期： 2022 年 23 卷 16 期

页码：

收录情况： SCI

摘要： Celery (Apium graveolens L.), a plant from Apiaceae, is one of the most important vegetables and is grown worldwide. Carotenoids can capture light energy and transfer it to chlorophyll, which plays a central role in photosynthesis. Here, by performing transcriptomics and genomics analysis, we identified and conducted a comprehensive analysis of chlorophyll and carotenoid-related genes in celery and six representative species. Significantly, different contents and gene expression patterns were found among three celery varieties. In total, 237 and 290 chlorophyll and carotenoid-related genes were identified in seven species. No notable gene expansion of chlorophyll biosynthesis was detected in examined species. However, the gene encoding zeta-carotene desaturase (ZDS) enzyme in carotenoid was expanded in celery. Comparative genomics and RNA-seq analyses revealed 16 and 5 key genes, respectively, regulating chlorophyll and carotenoid. An intriguing finding is that chlorophyll and carotenoid-related genes were coordinately regulated by transcriptional factors, which could be distinctively classified into positive- and negative-regulation groups. Six CONSTANS (CO)-like transcription factors co-regulated chlorophyll and carotenoid-related genes were identified in celery. In conclusion, this study provides new insights into the regulation of chlorophyll and carotenoid by transcription factors.

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