For thousands of years, tea, this kind of oriental magical leaf, has been famous all over the world. The application and dissemination of tea is a model of the harmonious and sustainable development of man and plant. In the past two decades, the development of genomics technology has allowed us to explore the characteristics of plants and the course of their domestication from the perspective of heredity and genes. Yunnan is the region with the richest tea resources and is also considered the center of the origin of tea. Based on the protection, development, utilization of tea resources, and the responsibility for the sustainable development of tea, in the past ten years, our team has been committed to the research on the diversity and genome of tea genetic resources, and together with domestic and foreign counterparts, we have achieved a lot in tea genomes. However, the origin of global tea and the process of domestication of tea are still not fully understood. Here, we have completed the sequencing of thousands of tea genetic resources, especially the genome analysis of important tea resources around the world. These massive amounts of data are not only important for us to understand the origin and domestication of tea, but also for the breeding and protection of tea resources. This database not only includes the above-mentioned genomic information, but also information about tea and its related species. We hope that this database can become an important comprehensive database in the field of tea research.

Yunnan provincial key programs of Yunnan Eco-friendly Food International Cooperation Research Center project under grant 2019ZG00908

Yunnan Provincial Department of Science and Technology Biological Resources Digital Development and Application Project Number 202002AA100007

We built Teabase based on 12 Camellia genome assemblies, the resequencing data of 705 Camellia accessions from the global world, 100 RNA-seq datasets, and four genetic map datasets. The genome assembly of Camellia sinensis var. assamica contained in TeaBase is de novo assembled based on our data. High coverage re-sequencing data of 486 tea breeds worldwide are presented for the first time. In addition, Tea base provides three relatively complete projects, including the most comprehensive tea pan-genome to date, research on the genetic diversity of 1,350 tea trees in the central region of tea origin, and research on metagenomics of 448 soil of tea plants. These data and results are all reconstructed and analysed based on our data and are visualised and downloaded into this database for the first time. We also cover 265 species and 714 germplasm information of Camellia, even if they do not have enough omics data. We provide users and researchers with a complete data transmission strategy and invite all Camellia researchers around the world to improve Teabase. We collected a total of 2105 re-sequenced genomes for Camellia (up to Dec 31th, 2022). The newest Camellia genome assembly YK10(2020), is used as a reference. After quality control and data filtering, 486 globe genomes and 1350 lincang genomes are maintained in the population genomic analyses. The sequencing depth is >4X. And the genome coverage is >85%.

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FOC
FOC (http://www.iplant.cn/)

Institute:  Yunnan Plateau Characteristic Agricultural Industry Research Institute

Address:  No. 452, Fengyuan Road, Panlong District, Kunming, 650201, China

E-mail:  dongyang@dongyang-lab.org