MiMYB10 transcription factor regulates biosynthesis and accumulation of carotenoid involved genes in mango fruit
文献类型： 外文期刊
作者： Dang, Zhiguo 1 ; Zhu, Min 1 ; Chen, Huarui 1 ; Zhang, Ye 4 ; Gao, Aiping 1 ; Ma, Weihong 1 ; Chen, Yeyuan 1 ; Wei, Yunxie 4 ; Zhang, He 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Peoples R China
2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Key Lab Integrated Pest Management Trop Grops, Minist Agr & Rural Affairs, Haikou 571101, Peoples R China
3.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572024, Peoples R China
4.Hainan Univ, Sanya Nanfan Res Inst, Coll Trop Crops,Key Lab Biotechnol Salt Tolerant C, Collaborat Innovat Ctr Nanfan & High Efficiency Tr, Haikou 570228, Peoples R China
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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