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Combined Transcriptome and Metabolome Analyses Provide New Insights into the Changes in the Flesh Color of Anthocyanins in Strawberry (Fragaria x ananassa (Weston) Duchesne ex Rozier)

文献类型： 外文期刊

作者： Ren, Xiangrong 1 ; Sun, Meile 1 ; Hui, Jingtao 1 ; Yang, Jing 1 ; Zhang, Jun 1 ; Li, Pengbing 1 ; Lin, Guocang 1 ;

作者机构： 1.Xinjiang Acad Agr Sci, Comprehens Expt Field, Urumqi 830091, Peoples R China

关键词： strawberry; flesh color; RNA-seq; metabolomics

期刊名称：GENES （ 影响因子：2.8； 五年影响因子：3.2 ）

ISSN：

年卷期： 2024 年 15 卷 11 期

页码：

收录情况： SCI

摘要： Background: Strawberries are bright in color, sweet and sour in taste, and rich in nutrients and flavonoid compounds such as anthocyanins and proanthocyanidins. The synthesis and accumulation of anthocyanins are the decisive factors that make strawberries appear bright red. From the perspective of plant breeding, a change in flesh color is an important goal. Methods: In this study, two strawberry plants with different flesh colors were selected, and transcriptome and metabolome analyses were performed during the color change period (S1) and ripening period (S2). Results: RNA-seq revealed a total of 13,341 differentially expressed genes (DEGs) between and within materials, which were clustered into 5 clusters. A total of 695 metabolites were detected via metabolome analysis, and 243 differentially regulated metabolites (DRMs) were identified. The anthocyanin biosynthesis, starch and sucrose metabolism and glycolysis/gluconeogenesis pathways were determined to be important regulatory pathways for changes in strawberry flesh color through a joint analysis of RNA-seq data and the metabolome. The leucoanthocyanidin reductase (LAR) and chalcone synthase (CHS) gene is a key gene related to anthocyanins, cinnamic acid, and phenylalanine. In addition, through joint RNA-seq and metabolome analyses combined with weighted gene co-expression network analysis (WGCNA), we identified 9 candidate genes related to strawberry flesh color. Conclusions: Our research findings have laid the groundwork for a more comprehensive understanding of the molecular mechanisms governing the color transformation in strawberry flesh. Additionally, we have identified novel genetic resources that can be instrumental in advancing research related to strawberry color change.

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