Warburgia ugandensis and Saururus chinensis are two of the most important medicinal plants in magnoliids and are widely utilized in traditional Kenya and Chinese medicine, respectively. The absence of higher-quality reference genomes has hindered research on the medicinal compound biosynthesis mechanisms of these plants. We report the chromosome-level genome assemblies of W. ugandensis and S. chinensis, and generated 1.13 Gb and 0.53 Gb genomes from 74 and 27 scaffolds, respectively, using BGI-DIPSEQ, Nanopore, and Hi-C sequencing. The scaffold N50 lengths were 82.97 Mb and 48.53 Mb, and the assemblies were anchored to 14 and 11 chromosomes of W. ugandensis and S. chinensis, respectively. In total, 24,739 and 20,561 genes were annotated, and 98.5% and 98% of the BUSCO genes were fully represented, respectively. The chromosome-level genomes of W. ugandensis and S. chinensis will be valuable resources for understanding the genetics of these medicinal plants, studying the evolution of magnoliids and angiosperms and conserving plant genetic resources.

Warburgia ugandensis和Saururus chinensis是木兰科植物中两种最重要的药用植物，分别在传统肯尼亚和中药中广泛使用。高质量参考基因组的缺乏阻碍了对这些植物药用化合物生物合成机制的研究。我们报告了W. ugandensis和S. chinensis的染色体水平基因组组装，并使用 BGI-DIPSEQ、Nanopore 和 Hi-C 测序分别从 74 个和 27 个支架生成了 1.13 Gb 和 0.53 Gb 基因组。支架N50长度为82.97 Mb和48.53 Mb，组装体分别锚定于W. ugandensis和S. chinensis的14和11条染色体上。总共注释了 24,739 个和 20,561 个基因，分别完全代表了 98.5% 和 98% 的 BUSCO 基因。乌干木和中华木的染色体水平基因组将为了解这些药用植物的遗传学、研究木兰科和被子植物的进化以及保护植物遗传资源提供宝贵的资源。