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Transcription Regulation of Anthocyanins and Proanthocyanidins Accumulation by Bagging in Ruby' Red Mango: An RNA-seq Study

文献类型： 外文期刊

作者： Zhu, Wencan 1 ; Wu, Hongxia 3 ; Yang, Chengkun 1 ; Wang, Xiaowen 1 ; Shi, Bin 1 ; Zheng, Bin 3 ; Ma, Xiaowei 3 ; Qian, Minjie 1 ; Gao, Aiping 4 ; Zhou, Kaibing 1 ;

作者机构： 1.Hainan Univ, Sanya Nanfan Res Inst, Haikou 570228, Peoples R China

2.Hainan Univ, Key Lab Qual Regulat Trop Hort Crop Hainan Prov, Haikou 570228, Peoples R China

3.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Fruit Biol, Minist Agr & Rural Affairs, Zhanjiang 524091, Peoples R China

4.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China

5.Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhancemen, Haikou 571100, Peoples R China

关键词： Mangifera indica; flavonoids; transcriptome; light; weighted gene co-expression network analysis

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 9 卷 8 期

页码：

收录情况： SCI

摘要： The biosynthesis of anthocyanins and proanthocyanidins (PAs), components of two main flavonoids in plants, is regulated by environmental factors such as light. We previously found that bagging significantly repressed the biosynthesis of anthocyanins in red 'Ruby' mango fruit peel, but induced the accumulation of PAs. However, the molecular mechanism remains unclear. In the current study, transcriptome sequencing was used for screening the essential genes responsible for the opposite accumulation pattern of anthocyanins and PAs by bagging treatment. According to weighted gene co-expression network analysis (WGCNA), structural genes and transcription factors highly positively correlated to anthocyanins and PAs were identified. One flavanone 3-hydroxylase (F3H) and seven structural genes, including one chalcone synthase (CHS), one flavonoid 3'-hydroxylase (F3'H), one anthocyanidin synthesis (ANS), three leucoanthocyanidin reductase (LARs), and one UDP glucose: flavonoid 3-O-glucosyltransferase (UFGT), are crucial for anthocyanin and PA biosynthesis, respectively. In addition to MYB and bHLH, ERF, C2H2, HD-ZIP, and NAC are important transcription factors that participate in the regulation of anthocyanin and PA biosynthesis in 'Ruby' mango fruit peel by bagging treatment. Our results are helpful for revealing the transcription regulation mechanism of light-regulated mango anthocyanin and PA biosynthesis, developing new technologies for inducing flavonoid biosynthesis in mangos, and breeding mango cultivars containing high concentrations of flavonoids.

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