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<p>The giant pangasius (<i>Pangasius sanitwongsei</i>) is a critically endangered freshwater species with considerable ecological and economic significance in Southeast Asia and southern China. However, the lack of a high-quality reference genome has limited studies on its genetic adaptation and conservation strategies. Here, we present a chromosome-scale genome assembly of <i>P. sanitwongsei</i>, generated using PacBio HiFi long-read sequencing and Hi-C chromatin conformation capture. The final assembly spans 808.85 Mb, with a contig N50 of 18.70 Mb and a scaffold N50 of 28.10 Mb, achieving a BUSCO gene completeness of 99.15%. A total of 23,469 protein-coding genes were annotated, and 96.97% of the genes were functionally characterized. This high-quality genomic resource provides crucial insights into the adaptive evolution of Pangasiidae catfishes and offers a valuable foundation for conservation genomics, adaptive evolution, population genetics, and sustainable aquaculture development.</p>

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A chromosome-level reference genome assembly of the giant pangasius (Pangasius sanitwongsei)

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月16日

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  • Baojiang Gan,
  • Lingjing Wei,
  • Yuanxiong Ma,
  • Feilong Mo,
  • Shan Xiao,
  • Yudian Lu,
  • Kang Liu,
  • Binlan Yang,
  • Sheng Zhang,
  • Haiyang Liu

摘要

The giant pangasius (Pangasius sanitwongsei) is a critically endangered freshwater species with considerable ecological and economic significance in Southeast Asia and southern China. However, the lack of a high-quality reference genome has limited studies on its genetic adaptation and conservation strategies. Here, we present a chromosome-scale genome assembly of P. sanitwongsei, generated using PacBio HiFi long-read sequencing and Hi-C chromatin conformation capture. The final assembly spans 808.85 Mb, with a contig N50 of 18.70 Mb and a scaffold N50 of 28.10 Mb, achieving a BUSCO gene completeness of 99.15%. A total of 23,469 protein-coding genes were annotated, and 96.97% of the genes were functionally characterized. This high-quality genomic resource provides crucial insights into the adaptive evolution of Pangasiidae catfishes and offers a valuable foundation for conservation genomics, adaptive evolution, population genetics, and sustainable aquaculture development.