title: Comparative Transcriptomic Analysis of Grape Berry in Response to Root Restriction during Developmental Stages.
abstract: 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 × 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 salicylateO-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.
authors: Laboratory of Fruit Quality Biology, The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China. lengfeng.214@163.com.
authors: Feng
authors: F
authors: Leng
authors: Laboratory of Fruit Quality Biology, The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China. linqiong@zju.edu.cn.|Institute of Agro-Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Opening Laboratory of Agricultural Products Processing and Quality Control, Ministry of Agriculture, Beijing 100193, China. linqiong@zju.edu.cn.
authors: Qiong
authors: Q
authors: Lin
authors: Laboratory of Fruit Quality Biology, The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China. adesun2006@zju.edu.cn.
authors: Di
authors: D
authors: Wu
authors: School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. fruit@sjtu.edu.cn.
authors: Shiping
authors: S
authors: Wang
authors: Quzhou Academy of Agricultural Science, Quzhou 324000, China. dengliangwang001@163.com.
authors: Dengliang
authors: D
authors: Wang
authors: Laboratory of Fruit Quality Biology, The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China. adesun2006@zju.edu.cn.
authors: Chongde
authors: C
authors: Sun
mesh_terms: D000872:Anthocyanins / Q000032:analysis; D005638:Fruit / Q000235:genetics / Q000254:growth & development*; D020869:Gene Expression Profiling / Q000379:methods*; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D063990:Gene Ontology; D010636:Phenols / Q000032:analysis; D010940:Plant Proteins / Q000235:genetics*; D018517:Plant Roots / Q000235:genetics / Q000254:growth & development*; D044945:Proanthocyanidins / Q000032:analysis; D064210:Secondary Metabolism; D017423:Sequence Analysis, RNA / Q000379:methods*; D027843:Vitis / Q000235:genetics* / Q000254:growth & development
chemical_list: D000872:Anthocyanins; D010636:Phenols; D010940:Plant Proteins; D044945:Proanthocyanidins
keywords: RNA-Seq; grape berry; root restriction; transcriptome