转录因子对园艺作物果肉颜色的调控

doi:10.16420/j.issn.0513-353x.2024-0361

摘要/Abstract

摘要： 果肉颜色是园艺作物果实的重要性状，对自身种子传播、营养物质评价，消费者选择都十分重要。果肉颜色表现出多样性及复杂性，比如猕猴桃果肉存在绿、黄、红心，西瓜果肉存在黄、红、白、混合等多种颜色。果肉颜色的形成主要受色素类物质的组成及含量影响，如类胡萝卜素、叶绿素、花青素苷等。通过调控色素类物质代谢通路中的关键基因表达，可以实现对园艺产品颜色的调控。转录因子（Transcription factor，TF）通过与相关基因的启动子区域结合，激活或抑制基因的表达，实现对基因表达和颜色的调控。在前人的研究中，多种转录因子被发掘并证明对色素代谢通路中相关基因及颜色具有重要调控作用，如MYB、NAC、MADS、WRKY等。

关键词: 转录因子, 果肉颜色, 色素调控, MYB, NAC, MADS, WRKY

Abstract: Flesh color is an important trait of horticultural crops，which is crucial for seeds dispersal，nutrition evaluation and consumer selection. Flesh color exhibits diversity and complexity，for example，green，yellow，and red-flesh were present in kiwifruit，watermelon flesh has yellow，red，white，mixed color. The formation of flesh color is mainly affected by the composition and concentration of pigments，such as carotenoids，chlorophyll，anthocyanins，etc. The regulation of flesh color can be achieved through modulating the expression of key genes in pigments metabolism pathway. Transcription factors（TFs）activate or repress the expression of those genes by interact with promoter of relevant genes and further regulate flesh color. In previous studies，multiple kinds of transcription factors have been discovered and proved to play an important role in regulating genes in pigment metabolism pathways and flesh color，such as MYB，NAC，MADS，WARK and others.

Key words: transcription factor, flesh color, pigments regulating, MYB, NAC, MADS, WRKY

中图分类号:

S 66

袁路明, 朱红菊, 刘文革. 转录因子对园艺作物果肉颜色的调控[J]. 园艺学报, 2025, 52(4): 1051-1064.

YUAN Luming, ZHU Hongju, LIU Wenge. The Regulation of Flesh Color of Horticultural Crops by Transcription Factors[J]. Acta Horticulturae Sinica, 2025, 52(4): 1051-1064.

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