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<p><i>Rosa bracteata</i> is the only wild species in the section <i>Bracteatae</i> of the genus <i>Rosa</i>, and no genome assembly exists for this section. It has been used as a paternal donor in modern rose breeding and biological research due to its exceptional heat tolerance. Here, we present a high-quality chromosome-scale genome assembly of <i>R. bracteata</i>, totaling 540.63 Mb with a contig N50 of 35.97 Mb, anchored into seven pseudochromosomes. A total of 42,789 protein-coding genes were predicted, with 38,394 functionally annotated using public databases. This high-quality genome provides a valuable resource for investigating genetic evolution, molecular basis of adaptive traits, and facilitating molecular breeding for <i>Rosa</i> species.</p>

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The chromosome-scale genome assembly and annotation of Rosa bracteata (Macartney Rose)

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月7日

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  • Runhui Li,
  • Yanhong He,
  • Fayun Xiang,
  • Jian Wang,
  • Wei Zhang,
  • Yuanyuan Yang,
  • Guogui Ning

摘要

Rosa bracteata is the only wild species in the section Bracteatae of the genus Rosa, and no genome assembly exists for this section. It has been used as a paternal donor in modern rose breeding and biological research due to its exceptional heat tolerance. Here, we present a high-quality chromosome-scale genome assembly of R. bracteata, totaling 540.63 Mb with a contig N50 of 35.97 Mb, anchored into seven pseudochromosomes. A total of 42,789 protein-coding genes were predicted, with 38,394 functionally annotated using public databases. This high-quality genome provides a valuable resource for investigating genetic evolution, molecular basis of adaptive traits, and facilitating molecular breeding for Rosa species.