期刊
NATURE COMMUNICATIONS
卷 5, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms6315
关键词
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资金
- National Science and Technology Support Plan of China [2013BAD14B03]
- National Natural Science Foundation of China [31372029]
- Giant Plan of Hebei, China
- Top Talent Project of Hebei, China
- Science Foundation for Distinguished Young Scholars of Hebei Province, China [C2010000679]
The jujube (Ziziphus jujuba Mill.), a member of family Rhamnaceae, is a major dry fruit and a traditional herbal medicine for more than one billion people. Here we present a high-quality sequence for the complex jujube genome, the first genome sequence of Rhamnaceae, using an integrated strategy. The final assembly spans 437.65Mb (98.6% of the estimated) with 321.45Mb anchored to the 12 pseudo-chromosomes and contains 32,808 genes. The jujube genome has undergone frequent inter-chromosome fusions and segmental duplications, but no recent whole-genome duplication. Further analyses of the jujube-specific genes and transcriptome data from 15 tissues reveal the molecular mechanisms underlying some specific properties of the jujube. Its high vitamin C content can be attributed to a unique high level expression of genes involved in both biosynthesis and regeneration. Our study provides insights into jujube-specific biology and valuable genomic resources for the improvement of Rhamnaceae plants and other fruit trees.
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