Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Sci Data. 2024 Oct 3;11(1):1078. doi: 10.1038/s41597-024-03924-7.
The deciduous American sweetgum (Liquidambar styraciflua, Altingiaceae) is a popular ornamental and economically valuable tree renowned for its sweet-smelling bark resin, abundant volatile substances, and spectacular fall leaf color. However, the absence of a reference genome hinders thorough investigations into the mechanisms underlying phenotypic variation, secondary metabolite synthesis and adaptation, both in this species and other Liquidambar members. In this study, we sequenced and constructed a chromosome-level assembly of the L. styraciflua genome, covering 662.48 Mb with a scaffold N50 of 39.54 Mb, by integrating PacBio, Illumina and chromosome conformation capture data. We identified 58.83% of the genome sequences as repetitive elements and 25,713 protein-coding genes, 97.28% of which were functionally annotated. The genome sequencing reads, assembly and annotation data have been deposited in publicly available repositories. This high-quality genome assembly provides valuable resources for further evolutionary and functional genomic studies in American sweetgum and other Liquidambar species.
落羽杉（Liquidambar styraciflua，Altingiaceae）是一种常见的观赏树种和具有经济价值的树种，因其芳香的树皮树脂、丰富的挥发性物质和壮观的秋季叶片颜色而闻名。然而，由于缺乏参考基因组，阻碍了对该物种和其他 Liquidambar 成员中表型变异、次生代谢物合成和适应的机制的深入研究。在这项研究中，我们通过整合 PacBio、Illumina 和染色体构象捕获数据，对 L. styraciflua 基因组进行了测序和构建了染色体水平的组装，覆盖了 662.48 Mb， scaffolds N50 为 39.54 Mb。我们鉴定出 58.83%的基因组序列为重复元件和 25713 个蛋白质编码基因，其中 97.28%具有功能注释。基因组测序读数、组装和注释数据已被存入公共可用的数据库中。这个高质量的基因组组装为进一步研究美国甜槭和其他 Liquidambar 物种的进化和功能基因组学提供了有价值的资源。
