Comparative Transcriptomic Analysis of Grape Berry in Response to Root Restriction during Developmental Stages
文献类型: 外文期刊
第一作者: Leng, Feng
作者: Leng, Feng;Lin, Qiong;Wu, Di;Sun, Chongde;Lin, Qiong;Wang, Shiping;Wang, Dengliang
作者机构:
关键词: grape berry;root restriction;RNA-Seq;transcriptome
期刊名称:MOLECULES ( 影响因子:4.411; 五年影响因子:4.587 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Root restriction improved berry quality by being involved in diverse aspects of grapevine life. However, the molecular mechanism driving this process is not understood very well. In this study, the 'Summer Black' grape berry (Vitis vinifera x V. labrusca) under root restriction was investigated, which showed an increase of total soluble solids (TSS), color index of red grapes (CIRG) value, anthocyanins accumulation, total phenolics and total procyanidins contents during berry development compared with those in control berries. The transcriptomic changes induced by root restriction in 'Summer Black' grape over the course of berry development were analyzed by RNA-Seq method. A total of 29,971 genes were generated in 'Summer Black' grape berry during development, among which, 1606 genes were significantly responded to root restriction. Furthermore, 1264, 313, 141, 246 and 19 sequences were significantly changed at S1, S2, S3, S4 and S5 sample points, respectively. The gene (VIT_04s0023g02290) predicted as a salicylate O-methyltransferase was differentially expressed in all developmental stages. Gene Ontology (GO) enrichment showed that response to organic nitrogen, response to endogenous stimulus, flavonoid metabolic process, phenylpropanoid biosynthetic process and cell wall macromolecule metabolic process were the main significant differential categories. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment revealed plant-pathogen interaction, plant hormone signal transduction, flavone and flavonol biosynthesis, flavonoid biosynthesis and glucosinolate biosynthesis were the main significant differential pathways. The results of the present study provided a genetic base for the understanding of grape berry fruit quality improvement under root restriction.
分类号: O62
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