Soil-Mulching Treatment Enhances the Content of Stilbene in Grape Berries: A Transcriptomic and Metabolomic Analysis
文献类型： 外文期刊
作者： Wang, Bo 1 ; Wu, Weimin 1 ; Wang, Zhuangwei 1 ; Chen, Zhenxiao 1 ; Wang, Xicheng 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Jiangsu Key Lab Hort Crop Genet Improvement, Inst Pomol, 50 Zhongling St, Nanjing 210014, Peoples R China
关键词： mulching; grape; stilbene; transcriptome; metabolomics; berry quality; weighted gene co-expression network analysis (WGCNA)
期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）
ISSN：
年卷期： 2024 年 13 卷 19 期
页码：
收录情况： SCI
摘要： Soil mulching is a useful agronomic practice that promotes early fruit maturation and affects fruit quality. However, the regulatory mechanism of fruit metabolites under soil-mulching treatments remains unknown. In this study, variations in the gene sets and metabolites of grape berries after mulching (rice straw + felt + plastic film) using transcriptome and metagenomic sequencing were investigated. The results of the cluster analysis and orthogonal projection to latent structures discriminant analysis of the metabolites showed a difference between the mulching and control groups, as did the principal component analysis results for the transcriptome. In total, 36 differentially expressed metabolites were identified, of which 10 (resveratrol, ampelopsin F, piceid, 3,4 '-dihydroxy-5-methoxystilbene, epsilon-viniferin, trans resveratrol, epsilon-viniferin, 3 '-hydroxypterostilbene, 1-methyl-resveratrol, and pterostil-bene) were stilbenes. Their content increased after mulching, indicating that stilbene synthase activity increased after mulching. The weighted gene co-expression network analysis revealed that the turquoise and blue modules were positively and negatively related to stilbene compounds. The network analysis identified two seed genes (VIT_09s0054g00610, VIT_13s0156g00260) and two transcription factors (VIT_13s0156g00260, VIT_02s0025g04590). Overall, soil mulching promoted the accumulation of stilbene compounds in grapes, and the results provided key genetic information for further studies.
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