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<p>Feather stars are an important group for studying the evolution and environmental adaptability. However, the absence of a high-quality feather star genome from deep sea has hindered a thorough understanding of their adaptive evolution. In this study, we reported the first chromosome-level genome assembly of <i>Glyptometra</i> sp. from a deep seamount, Zhenbei seamount, in South China Sea. The <i>Glyptometra</i> sp. CNS01629 genome assembly has a total length of 1.14 Gb with a contig N50 length of 19.0 Mb and a scaffold N50 length of 84.75 Mb, encompassing 13 chromosomes, highlighting high genome continuity. Benchmarking Universal Single-Copy Orthologs (BUSCO) assessment yielded a completeness estimate of 98.1% for this assembly. We predicted a total of 20,814 protein&#xa0;coding genes (PCGs), with 20,309 functionally annotated. The availability of this high-quality chromosome-level genome of <i>Glyptometra</i> sp. CNS01629 contributes to our understanding of the origin and evolution of crinoids.</p>

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A high-quality chromosome-level genome assembly of a feather star Glyptometra sp. from a deep seamount

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月5日

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  • Jing Wang,
  • Shao’e Sun,
  • Zijie Mei,
  • Zhongli Sha,
  • Nansheng Chen

摘要

Feather stars are an important group for studying the evolution and environmental adaptability. However, the absence of a high-quality feather star genome from deep sea has hindered a thorough understanding of their adaptive evolution. In this study, we reported the first chromosome-level genome assembly of Glyptometra sp. from a deep seamount, Zhenbei seamount, in South China Sea. The Glyptometra sp. CNS01629 genome assembly has a total length of 1.14 Gb with a contig N50 length of 19.0 Mb and a scaffold N50 length of 84.75 Mb, encompassing 13 chromosomes, highlighting high genome continuity. Benchmarking Universal Single-Copy Orthologs (BUSCO) assessment yielded a completeness estimate of 98.1% for this assembly. We predicted a total of 20,814 protein coding genes (PCGs), with 20,309 functionally annotated. The availability of this high-quality chromosome-level genome of Glyptometra sp. CNS01629 contributes to our understanding of the origin and evolution of crinoids.