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<p><i>Corbicula</i> clams are of important economic values. <i>Corbicula</i> clams have diverse reproductive characteristics, inhabiting both freshwater and estuary. Here, we constructed a chromosome-level genome of the estuarine <i>C. fluminalis</i> from China by combining HiFi sequencing and Hi-C technology. The assembled genome is 1,140.30 Mb with a scaffold N50 length of 58.80 Mb, and is anchored onto 19 pseudo-chromosomes. A total of 25,363 protein-coding genes were identified and 94.03% of the identified genes were annotated. Approximately 63.50% of the genome is consisted of repetitive elements. The genome synteny between <i>C. fluminalis</i> and <i>Mercenaria mercenaria</i> is highly conserved. The chromosome genome assembly of <i>C. fluminalis</i> is a valuable resource for active ingredient research, phylogenomic studies and comparative genomics of the <i>Corbicula</i> clams and related species.</p>

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Chromosome-level genome assembly of the estuarine Corbicula flumnalis from the Yangtze River estuary in China

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月24日

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  • Yangxin Tang,
  • Jie Pi,
  • Siting Yang,
  • Xinhua Liu,
  • Jianguo Xiang,
  • Chao Bian,
  • Deliang Li

摘要

Corbicula clams are of important economic values. Corbicula clams have diverse reproductive characteristics, inhabiting both freshwater and estuary. Here, we constructed a chromosome-level genome of the estuarine C. fluminalis from China by combining HiFi sequencing and Hi-C technology. The assembled genome is 1,140.30 Mb with a scaffold N50 length of 58.80 Mb, and is anchored onto 19 pseudo-chromosomes. A total of 25,363 protein-coding genes were identified and 94.03% of the identified genes were annotated. Approximately 63.50% of the genome is consisted of repetitive elements. The genome synteny between C. fluminalis and Mercenaria mercenaria is highly conserved. The chromosome genome assembly of C. fluminalis is a valuable resource for active ingredient research, phylogenomic studies and comparative genomics of the Corbicula clams and related species.