Mei (Prunus mume Sieb. et Zucc. 2n=2X=16), originating from the southwest of China, belongs to the Prunoideae subfamily i n the Rosaceae family. Mei is a woody perennial tree with a long intergeneration period. It has been domesticated in China more than 3,000 years ago. In East Asia, mei's flower and young fruit can tolerate low temperature (-4C ~ -2C) in early spring. Its bloom season is in late winter (typically late January or February) before the leaves, making people enjoy their attractive and fragrant flowers.

The first comprehensive Prunus mume genome has been recently completed by Beijing Forestry University, National Engineering Research Center for Floriculture, BGI and Beijing Lin Fu Ke Yuan Flowers Co., Ltd after two years of sequencing, assembly and annotation. There are 30 experts and researchers participated in this project.

The Prunus mume database (PMDB) is a web-based database of genetic data at the whole genome scale for important flower crops. Herein, we report a high quality draft genome sequence of the wide P. mume (Tongmai town, Bomi county, Tibet, China) by combination of next generation sequencing data and optical mapping data called Whole Genome Mapping (WGM). About 84.6% (237Mb) of the estimated whole genome(280M) was assembled. We anchored 83.9% of the assembly scaffolds onto 8 chromosomes by the high-density genetic map constructed by Restriction-site Associated DNA (RAD).The P. mume genome provides a vita evidence for Rosaceae evolution research and platform for genetic improvement of fruit trees.

By accessing these data, you agree not to publish any articles involving analyses of genic or genomic data on a whole genome or chromosome scale prior to publication of a comprehensive genome analysis ("Reserved Analyses") by us . "Reserved analyses" include the identification of genomic features such as genes, gene families, regulatory elements, repeat structures, GC content, or any other genome feature, and whole genome- or chromosome- scale comparisons with other species. If you are interested in collaboration on one of these topics involving the Prunus mume genome, please contact us.

The publication of the Prunus mume genome is in the coming months. If you will be employing the data for non-reserved analyses, such as cloning a gene of interest or to analyze a gene family etc., please send us an email to notify us of this activity, and we only ask that you cite the corresponding paper.

PMDB(Prunus mume Database) is continuously updated in the near future. If you encounter any problems or feel confusion about usage of these data, please contact to us.

Download Prunus mume genome annotation data