College of Life Sciences, Luoyang Normal University, Luoyang, China.
Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
Nat Commun. 2024 Oct 29;15(1):9320. doi: 10.1038/s41467-024-53718-z.
Jujube (Ziziphus jujuba Mill.), belonging to the Rhamnaceae family, is gaining increasing prominence as a perennial fruit crop with significant economic and medicinal values. Here, we conduct de novo assembly of four reference-grade genomes, encompassing one wild and three cultivated jujube accessions. We present insights into the population structure, genetic diversity, and genomic variations within a diverse collection of 1059 jujube accessions. Analyzes of the jujube pan-genome, based on our four assemblies and four previously released genomes, reveal extensive genomic variations within domestication-associated regions, potentially leading to the discovery of a candidate gene that regulates flowering and fruit ripening. By leveraging the pan-genome and a large-scale resequencing population, we identify two candidate genes involved in domestication traits, including the seed-setting rate, the bearing-shoot length and the leaf size in jujube. These genomic resources will accelerate evolutionary and functional genomics studies of jujube.
枣（Ziziphus jujuba Mill.），属于鼠李科，作为一种具有重要经济和药用价值的多年生水果作物，其重要性日益凸显。在这里，我们对四个参考基因组进行了从头组装，其中包括一个野生和三个栽培的枣品种。我们深入了解了一个包含 1059 个枣品种的多样化群体的种群结构、遗传多样性和基因组变异。基于我们的四个组装和四个先前发布的基因组，对枣泛基因组的分析揭示了驯化相关区域内广泛的基因组变异，这可能导致调控开花和果实成熟的候选基因的发现。通过利用泛基因组和大规模重测序群体，我们鉴定出两个与驯化特征相关的候选基因，包括枣的结实率、果枝长度和叶片大小。这些基因组资源将加速枣的进化和功能基因组学研究。
