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Transcriptomics and metabolomics reveal the mechanism of metabolites changes in Cymbidium tortisepalum var. longibracteatum colour mutation cultivars

文献类型： 外文期刊

作者： Jiang, Yu 1 ; Liu, Yaqin 2 ; Lin, Yang 1 ; Tu, Xunliang 1 ; He, Junrong 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Inst Hort, Chengdu, Sichuan, Peoples R China

2.Sichuan Acad Agr Sci, Dept Technol Management, Chengdu, Sichuan, Peoples R China

期刊名称：PLOS ONE （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN： 1932-6203

年卷期： 2024 年 19 卷 6 期

页码：

收录情况： SCI

摘要： Background Foliage color is considered an important ornamental character of Cymbidium tortisepalum (C. tortisepalum), which significantly improves its horticultural and economic value. However, little is understood on the formation mechanism underlying foliage-color variations. Methods In this study, we applied a multi-omics approach based on transcriptomics and metabolomics, to investigate the biomolecule mechanisms of metabolites changes in C. tortisepalum colour mutation cultivars. Results A total of 508 genes were identified as differentially expressed genes (DEGs) between wild and foliage colour mutation C. tortisepalum cultivars based on transcriptomic data. KEGG enrichment of DEGs showed that genes involved in phenylalanine metabolism, phenylpropanoid biosynthesis, flavonoid biosynthesis and brassinosteroid biosynthesis were most significantly enriched. A total of 420 metabolites were identified in C. tortisepalum using UPLC-MS/MS-based approach and 115 metabolites differentially produced by the mutation cultivars were identified. KEGG enrichment indicated that the most metabolites differentially produced by the mutation cultivars were involved in glycerophospholipid metabolism, tryptophan metabolism, isoflavonoid biosynthesis, flavone and flavonol biosynthesis. Integrated analysis of the metabolomic and transcriptomic data showed that there were four significant enrichment pathways between the two cultivars, including phenylalanine metabolism, phenylpropanoid biosynthesis, flavone and flavonol biosynthesis and flavonoid biosynthesis. Conclusion The results of this study revealed the mechanism of metabolites changes in C. tortisepalum foliage colour mutation cultivars, which provides a new reference for breeders to improve the foliage color of C. tortisepalum.

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