Integrated Metabolomic and Transcriptomic Analyses Reveal the Potential Regulation of Flavonoids in the Production of Embryogenic Cultures during Early Somatic Embryogenesis of Longan (Dimocarpus longan Lour.)
文献类型： 外文期刊
作者： Lai, Rui-Lian 1 ; Xu, Xiao-Ping 1 ; Qi, Feng 1 ; Zhang, Chun-Yu 1 ; Guan, Qing-Xu 1 ; Cui, Jing 1 ; Xuhan, Xu 1 ; Lin, Yu-Ling 1 ; Lai, Zhong-Xiong 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Inst Hort Biotechnol, Fuzhou 350002, Peoples R China
2.Fujian Acad Agr Sci, Fruit Res Inst, Fuzhou 350013, Peoples R China
3.Fujian Acad Agr Sci, Biotechnol Inst, Fuzhou 350003, Peoples R China
关键词： Dimocarpus longan Lour.; somatic embryogenesis; widely targeted metabolomics; transcriptomics; flavonoids
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2023 年 71 卷 47 期
页码：
收录情况： SCI
摘要： Embryogenic cultures of longan (Dimocarpus longan Lour.) contain various metabolites with pharmacological properties that may function in the regulation of somatic embryogenesis (SE). In this study, based on widely targeted metabolomics, 501 metabolites were obtained from the embryogenic calli, incomplete compact proembryogenic cultures, and globular embryos during early SE of longan, among which 41 flavonoids were differentially accumulated during the SE. Using RNA sequencing, 36 flavonoid-biosynthesis-related genes and 43 MYB and 52 bHLH transcription factors were identified as differentially expressed genes. Furthermore, Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that the flavonoid metabolism-related pathways were significantly enriched during the early SE. These results suggested that the changes in flavonoid levels in the embryogenic cultures of longan were mediated by MYBs and bHLHs via regulating flavonoid-biosynthesis-related genes, thus potentially regulating early SE. The identified metabolites in the embryogenic cultures of longan can be used to develop pharmaceutical ingredients.
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