Comprehensive Analysis of N6-Methyladenosine Regulatory Genes from Citrus grandis and Expression Profilings in the Fruits of "Huajuhong" (C. grandis "Tomentosa") during Various Development Stages
文献类型： 外文期刊
作者： Tian, Yuzhen 1 ; Zeng, Jiwu 1 ; Fan, Ruiyi 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou 510640, Peoples R China
3.Guangdong Prov Key Lab Trop & Subtrop Fruit Tree, Guangzhou 510640, Peoples R China
关键词： Citrus grandis; "Huajuhong"; N6-methyladenosine; RNA methylation
期刊名称：HORTICULTURAE （ 影响因子：2.923； 五年影响因子：3.582 ）
ISSN：
年卷期： 2022 年 8 卷 5 期
页码：
收录情况： SCI
摘要： Citrus grandis "Tomentosa" ("Huajuhong") is a famous traditional Chinese medicine. The aim of the present study is to provide a comprehensive characterization of the m(6)A regulatory genes from C. grandis, and examine their expression patterns in fruits of C. grandis "Tomentosa" during various developmental stages. A total of 26 N6-methyladenosine (m(6)A) regulatory proteins were identified from the genome of C. grandis, which were distributed across nine chromosomes in C. grandis. Phylogenetic relationships revealed that all m(6)A regulatory genes were divided into groups of m(6)A writers, erasers, and readers. The m(6)A writer groups included CgMTA, CgMTB, and CgMTC three MTs (methyltransferases), one CgVIR (virilizer), one CgHAKAI (E3 ubiquitin ligase HAKAI), and one CgFIP37 (FKBP interacting protein 37). Moreover, 10 CgALKBH (alpha-ketoglutarate-dependent dioxygenase homolog) members (numbered from CgALKBH1 to CgALKBH10) and 10 CgECT (C-terminal region) members (numbered from CgECT1 to CgECT10) in C. grandis were identified as m(6)A erasers and readers, respectively. The domain structures and motif architectures among the groups of m(6)A writers, erasers, and readers were diverse. Cis-acting elements in the promoters of the 26 m(6)A regulatory genes predicted that the abscisic acid-responsive (ABA) element (ABRE) was present on the promoters of 19 genes. In addition, the expression profiles of all m(6)A regulatory genes were examined in the fruits of two varieties of C. grandis "Tomentosa" during different growth stages to give basic hints for further investigation of the function of the N6-methyladenosine regulatory genes in C. grandis "Tomentosa".
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