文献类型： 外文期刊
作者： Yu, Xiaomin 1 ; Xiao, Jiajing 2 ; Chen, Si 1 ; Yu, Yuan 1 ; Ma, Jianqiang 4 ; Lin, Yuzhen 1 ; Li, Ruizi 1 ; Lin, Jun 1 ; Fu, 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Haixia Inst Sci & Technol, FAFU UCR Joint Ctr Hort Biol & Metab, Fuzhou 350002, Peoples R China
2.Chinese Acad Sci, Shanghai Ctr Plant Stress Biol, 3888 Chenhua Rd, Shanghai 201602, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Agr Sci, Tea Res Inst, Key Lab Tea Biol & Resources Utilizat, Minist Agr & Rural Affairs, Hangzhou 310008, Peoples R China
5.Henan Agr Univ, Coll Hort, Zhengzhou 450000, Peoples R China
6.Wuyi Star Tea Ind Co Ltd, Wuyishan 354300, Peoples R China
7.Univ Calif Riverside, Inst Integrat Genome Biol, Riverside, CA 92521 USA
8.Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA
9.Fujian Agr & Forestry Univ, Haixia Inst Sci & Technol, Ctr Agroforestry Mega Data Sci, Fuzhou 350002, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）
ISSN： 2041-1723
年卷期： 2020 年 11 卷 1 期
页码：
收录情况： SCI
摘要： The tea plant (Camellia sinensis) presents an excellent system to study evolution and diversification of the numerous classes, types and variable contents of specialized metabolites. Here, we investigate the relationship among C. sinensis phylogenetic groups and specialized metabolites using transcriptomic and metabolomic data on the fresh leaves collected from 136 representative tea accessions in China. We obtain 925,854 high-quality single-nucleotide polymorphisms (SNPs) enabling the refined grouping of the sampled tea accessions into five major clades. Untargeted metabolomic analyses detect 129 and 199 annotated metabolites that are differentially accumulated in different tea groups in positive and negative ionization modes, respectively. Each phylogenetic group contains signature metabolites. In particular, CSA tea accessions are featured with high accumulation of diverse classes of flavonoid compounds, such as flavanols, flavonol mono-/di-glycosides, proanthocyanidin dimers, and phenolic acids. Our results provide insights into the genetic and metabolite diversity and are useful for accelerated tea plant breeding. The molecular basis for the unique taste and aroma of tea cultivars is largely unknown, but is critical for breeding new cultivars. Here the authors use transcriptomics and metabolomics to study the relationship among phylogenetic groups and specialized metabolites from 136 tea accessions in China.
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