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Metabolic and Transcriptomic Analyses Reveal Different Metabolite Biosynthesis Profiles between Purple and Green Pak Choi

文献类型： 外文期刊

作者： Wang, Jinglei 1 ; Hu, Tianhua 1 ; Wang, Yidi 1 ; Wang, Wuhong 1 ; Hu, Haijiao 1 ; Wei, Qingzhen 1 ; Yan, Yaqin 1 ; Bao, Chonglai 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Vegetables Res, Hangzhou 310021, Peoples R China

2.Zhejiang A&F Univ, Coll Hort Sci, Hangzhou 311300, Peoples R China

关键词： pak choi; transcriptomes; metabolism; anthocyanin; MYB2

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2023 年 24 卷 18 期

页码：

收录情况： SCI

摘要： Pak choi is one of the most important leafy vegetables planted in East Asia and provides essential nutrients for the human body. Purple pak choi differs mainly in leaf colour but exhibits distinct nutritional profiles from green pak choi. In this study, we performed metabolic and transcriptomic analyses to uncover the mechanisms underlying the differences in metabolite biosynthesis profiles between the two pak choi varieties. Metabolite profiling revealed significant differences in the levels of metabolites, mainly amino acids and their derivatives and flavonoids. Furthermore, 34 flavonoids significantly differed between green and purple pak choi leaves, and cyanidin and its derivative anthocyanins were abundant in purple pak choi. In addition, we found that the structural genes CHS, DFR, ANS, and UGT75C1, as well as the transcription factor MYB2, play a major role in anthocyanin synthesis. These results provide insight into the molecular mechanisms underlying leaf pigmentation in pak choi and offer a platform for assessing related varieties.

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