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<p>The whelk <i>Neptunea cumingii</i> (Crosse, 1862) is a cold-temperate marine gastropod with direct development, an atypical life-history trait that influences its dispersal and adaptation. Here, we present the first chromosome-level genome assembly of <i>N. cumingii</i>, produced by integrating Nanopore long reads, Illumina short reads, and Hi-C scaffolds data. The assembled genome spans 4,898.96 Mb with 37 pseudochromosomes and exhibits high heterozygosity (1.18%) and a substantial repetitive content (84.31%). The assembly achieves contig and scaffold N50 values of 6.50 Mb and 150.98 Mb, respectively, and contains 19,107 protein-coding genes along with comprehensive non-coding RNA annotations. This high-quality genomic resource provides a foundation for investigating the genetic basis of direct development and adaptation in marine mollusks.</p>

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Chromosome-level genome assembly of whelk Neptunea cumingii (Crosse, 1862)

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月27日

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  • Yongxin Sun,
  • Shuo Wang,
  • Weiming Teng,
  • Xi Xie,
  • Hualin Li,
  • Dacheng Li,
  • Liang Qu,
  • Haijiao Liu,
  • Qingzhi Wang

摘要

The whelk Neptunea cumingii (Crosse, 1862) is a cold-temperate marine gastropod with direct development, an atypical life-history trait that influences its dispersal and adaptation. Here, we present the first chromosome-level genome assembly of N. cumingii, produced by integrating Nanopore long reads, Illumina short reads, and Hi-C scaffolds data. The assembled genome spans 4,898.96 Mb with 37 pseudochromosomes and exhibits high heterozygosity (1.18%) and a substantial repetitive content (84.31%). The assembly achieves contig and scaffold N50 values of 6.50 Mb and 150.98 Mb, respectively, and contains 19,107 protein-coding genes along with comprehensive non-coding RNA annotations. This high-quality genomic resource provides a foundation for investigating the genetic basis of direct development and adaptation in marine mollusks.