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Integrated Metabolome and Transcriptome Analysis Reveals a Potential Mechanism for Water Accumulation Mediated Translucency in Pineapple (Ananas comosus (L.) Merr.) Fruit

文献类型： 外文期刊

作者： Chen, Jing 1 ; Yao, Yanli 1 ; Zeng, Hui 1 ; Zhang, Xiumei 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Zhanjiang 524091, Peoples R China

2.Minist Agr, Key Lab Trop Fruit Tree Biol, Zhanjiang 524091, Peoples R China

关键词： pineapple; translucency; flavonoid; transcriptome; metabolome

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

ISSN：

年卷期： 2023 年 24 卷 8 期

页码：

收录情况： SCI

摘要： A physiological disease of the pineapple fruit called pineapple translucency causes the pulp to become water-soaked, which affects the fruit's taste, flavor, shelf life, and integrity. In the present study, we analyzed seven pineapple varieties, of which three were watery and four were non-watery. There were no apparent macronutritional (K, P, or N) differences in their pulp, but the non-watery pineapple varieties had higher dry matter and soluble sugar content. The metabolomic analysis found 641 metabolites and revealed differential expression of alkaloids, phenolic acids, nucleotide derivatives, lipids, and other metabolites among the seven species. Transcriptome analysis and further KEGG enrichment showed downregulation of 'flavonoid biosynthesis' pathways, differential expression of metabolic pathways, secondary metabolites biosynthesis, plant-pathogen interaction, and plant hormone signal transduction. We believe this study will provide critical molecular data supporting a deeper understanding of pineapple translucency formation and greatly benefit future research on this commercially important crop.

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