MiMYB10 transcription factor regulates biosynthesis and accumulation of carotenoid involved genes in mango fruit

文献类型： 外文期刊

第一作者： Dang, Zhiguo

作者： Dang, Zhiguo;Zhu, Min;Chen, Huarui;Gao, Aiping;Ma, Weihong;Chen, Yeyuan;Dang, Zhiguo;Zhang, He;Zhu, Min;Chen, Yeyuan;Zhang, Ye;Wei, Yunxie

作者机构：

关键词： Mango; MYB10; Transcriptional regulation; Phytoene desaturase gene; Carotenoid; Peel color

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）

ISSN： 0141-8130

年卷期： 2023 年 253 卷

页码：

收录情况： SCI

摘要： Carotenoids are essential and beneficial substances for both plant and human health. Identifying the regulatory network of these pigments is necessary for improving fruit quality and commodity value. In this study, we performed integrative analyses of transcriptome data from two different type fruits, ripening peel color at green ('Neelum' mango) and red ('Irwin' mango). Specifically, we found that MiMYB10 transcription level was highly associated with mango peel color. Further, silencing MiMYB10 homologous gene in tomato fruits resulted in lower carotenoid and anthocyanin content. Electrophoretic mobility shift assays and dual-luciferase clarified that MiMYB10 regulates the carotenoid biosynthesis gene MiPDS (phytoene desaturase gene) in a direct manner. On the other hand, MiMYB10 activates the expression of carotenoid biosynthesis genes (PSY, Z-ISO, CRTISO, LCYE) and chlorophyll degradation gene (SGR1), promoting the accumulation of carotenoid, accelerating chlorophyll degradation, and controlling peel color. In summary, this study identified important roles of MiMYB10 in pigment regulatory and provided new options for breeding strategies aiming to improve fruit quality.

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