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<p><i>Prunus cerasoides</i> Buch.-Ham. ex D. Don is the only wild red cherry species that flowers in winter, offering high ornamental value and significant potential for horticultural application. To support studies on its unique flowering phenology and evolutionary history, we generated a telomere-to-telomere (T2T) genome assembly for <i>P. cerasoides</i> using PacBio HiFi (CCS), Nanopore long-read, and Hi-C technologies. The final assembly size is 286.28 Mb, with a contig N50 of 32.82 Mb. All eight pseudochromosomes are completely gap-free, and we identified 16 telomeres and eight centromeres, confirming T2T completeness. We identified 27,979 protein-coding genes, with an average gene length of 3,132 bp. Additionally, we annotated 434,467repetitive elements, 1,233 rRNAs, 733 tRNAs, and 750 other non-coding RNAs. This high-quality, gap-free T2T genome provides a valuable resource for uncovering the genetic basis of winter flowering, accelerating molecular breeding, and elucidating the evolution of <i>Prunus</i> subgenus <i>Cerasus</i>.</p>

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A telomere-to-telomere genome assembly of Prunus cerasoides

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年8月4日

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  • Chengxiang Liang,
  • Feifei Han,
  • Xiangzhen Chen,
  • Qiqi Zhou,
  • Mingjun He,
  • Yujun Wang,
  • Chongbiao Wang,
  • Yunfu Wang,
  • Wenling Guan,
  • Meng Li,
  • Xianrong Wang,
  • Xiangui Yi

摘要

Prunus cerasoides Buch.-Ham. ex D. Don is the only wild red cherry species that flowers in winter, offering high ornamental value and significant potential for horticultural application. To support studies on its unique flowering phenology and evolutionary history, we generated a telomere-to-telomere (T2T) genome assembly for P. cerasoides using PacBio HiFi (CCS), Nanopore long-read, and Hi-C technologies. The final assembly size is 286.28 Mb, with a contig N50 of 32.82 Mb. All eight pseudochromosomes are completely gap-free, and we identified 16 telomeres and eight centromeres, confirming T2T completeness. We identified 27,979 protein-coding genes, with an average gene length of 3,132 bp. Additionally, we annotated 434,467repetitive elements, 1,233 rRNAs, 733 tRNAs, and 750 other non-coding RNAs. This high-quality, gap-free T2T genome provides a valuable resource for uncovering the genetic basis of winter flowering, accelerating molecular breeding, and elucidating the evolution of Prunus subgenus Cerasus.