Li Meifei, Zhang Yingmin, Wang Yi, Yin Yue, Zhou Meijun, Zhang Yonghong
School of Life Sciences, Yunnan Normal University, Kunming, 650500, China.
College of Chinese Material Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China.
Sci Data. 2024 Jul 17;11(1):790. doi: 10.1038/s41597-024-03635-z.
Aquilaria yunnanensis is an endangered agarwood-producing tree currently listed on the IUCN Red List of Threatened Species. The agarwood it produces has important medicinal and economic value, but its population has sharply declined due to human destruction and habitat reduction. Therefore, obtaining genomic information on A. yunnanensis is beneficial for its protection work. We assembled a chromosome-level reference genome of A. yunnanensis by using BGI short reads, PacBio HiFi long reads, coupled with Hi-C technology. The final genome assembly of A. yunnanensis is 847.04 Mb, with N50 size of 99.68 Mb, in which 805.49 Mb of the bases were anchored on eight pseudo-chromosomes. Two gapless pseudo-chromosomes were detected in the assembly. A total of 27,955 protein-coding genes as well as 74.65% repetitive elements were annotated. These findings may provide valuable resources in conservation, functional genomics, and molecular breeding of A. yunnanensis, as well as the molecular phylogenetics and evolutionary patterns in Aquilaria.
云南沉香是一种濒危的产沉香树，目前被列入世界自然保护联盟濒危物种红色名录。它所产生的沉香具有重要的药用和经济价值，但其种群数量由于人类破坏和栖息地减少而急剧下降。因此，获取云南沉香的基因组信息有利于其保护工作。我们利用华大基因的短读长、PacBio HiFi长读长以及Hi-C技术组装了云南沉香的染色体水平参考基因组。云南沉香的最终基因组组装大小为847.04 Mb，N50大小为99.68 Mb，其中805.49 Mb的碱基被锚定在8条假染色体上。组装中检测到两条无间隙的假染色体。共注释了27,955个蛋白质编码基因以及74.65%的重复元件。这些发现可能为云南沉香的保护、功能基因组学和分子育种，以及沉香属的分子系统发育和进化模式提供有价值的资源。
