Wang Yi, Yan Huijun, Qiu Xianqin, Zhang Hao, Zhang Yonghong, Jian Hongying
School of Life Sciences, Yunnan Normal University, Kunming, 650500, China.
Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650205, China.
Sci Data. 2025 Jan 22;12(1):132. doi: 10.1038/s41597-025-04461-7.
Rosa laevigata is an excellent rose germplasm, highly resistant to aphid, and immune to both rose black spot and powdery mildew disease. It is also a well-known edible plant with a long history of medicinal use in China, having the effects of improving kidney function, inhibiting arteriosclerosis, and reducing inflammation. In this study, we assembled a high-quality chromosome-scale genome for R. laevigata by combining Illumina, PacBio, and Hi-C data, which has a length of approximately 494.2 Mb with a scaffold N50 of 68.6 Mb. A total of 493.2 Mb (99.8%) of the draft genome sequences were anchored on seven pseudochromosomes and two gapless pseudochromosomes were included in the final genome assembly. A total of 37,117 protein-coding genes were predicted, 34,047 of which were functionally annotated. Repeat annotation revealed 659,558 (285.6 Mb) repeat elements, accounting for 57.8% of the genome. The chromosome-scale genome provides valuable information to facilitate comparative genomic analysis of rose family and will accelerate genome-guided breeding and germplasm improvement of both R. laevigata itself and modern roses.
金樱子是一种优良的蔷薇属种质资源，对蚜虫具有高度抗性，对玫瑰黑斑病和白粉病均免疫。它也是一种著名的可食用植物，在中国有着悠久的药用历史，具有改善肾功能、抑制动脉硬化和减轻炎症的作用。在本研究中，我们通过整合Illumina、PacBio和Hi-C数据，为金樱子组装了一个高质量的染色体级基因组，其长度约为494.2 Mb，支架N50为68.6 Mb。共有493.2 Mb（99.8%）的基因组草图序列被锚定在7条假染色体上，最终的基因组组装中包含2条无间隙假染色体。共预测了37,117个蛋白质编码基因，其中34,047个基因进行了功能注释。重复序列注释显示有659,558个（285.6 Mb）重复元件，占基因组的57.8%。该染色体级基因组为促进蔷薇科的比较基因组分析提供了有价值的信息，并将加速金樱子本身和现代玫瑰的基因组导向育种和种质改良。
