Dissection of mRNA ac4C acetylation modifications in AC and Nr fruits: insights into the regulation of fruit ripening by ethylene
文献类型： 外文期刊
作者： Ma, Lili 1 ; Zheng, Yanyan 1 ; Zhou, Zhongjing 2 ; Deng, Zhiping 2 ; Tan, Jinjuan 2 ; Bai, Chunmei 1 ; Fu, Anzhen 3 ; Wang, Qing 1 ; Zuo, Jinhua 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Fruits & Vegetable Storage & Proc, Key Lab Vegetable Postharvest Proc,Inst Agrifood P, Beijing Vegetable Res Ctr,Minist Agr & Rural Areas, Beijing 100097, Peoples R China
2.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China
3.Beijing Technol & Business Univ BTBU, Sch Food & Hlth, Beijing 100048, Peoples R China
关键词： ac(4)C modification; Tomato; Ethylene; Fruit ripening; mRNA
期刊名称：MOLECULAR HORTICULTURE （ 影响因子：8.1； 五年影响因子：11.0 ）
ISSN： 2730-9401
年卷期： 2024 年 4 卷 1 期
页码：
收录情况： SCI
摘要： N-4-acetylcytidine (ac(4)C) modification of mRNA has been shown to be present in plant RNAs, but its regulatory function in plant remains largely unexplored. In this study, we investigated the differentially expressed mRNAs, lncRNAs and acetylation modifications of mRNAs in tomato fruits from both genotypes. By comparing wild-type (AC) tomato and the ethylene receptor-mutant (Nr) tomato from mature green (MG) to six days after the breaker (Br6) stage, we identified differences in numerous key genes related to fruit ripening and observed the corresponding lncRNAs positively regulated the target genes expression. At the post-transcriptional level, the acetylation level decreased and increased in AC and Nr tomatoes from MG to Br6 stage, respectively. The integrated analysis of RNA-seq and ac(4)C-seq data revealed the potential positive role of acetylation modification in regulating gene expression. Furthermore, we found differential acetylation modifications of certain transcripts (ACO, ETR, ERF, PG, CesA, beta-Gal, GAD, AMY, and SUS) in AC and Nr fruits which may explain the differences in ethylene production, fruit texture, and flavor during their ripening processes. The present study provides new insights into the molecular mechanisms by which acetylation modification differentially regulates the ripening process of wild-type and mutant tomato fruits deficient in ethylene signaling.
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