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<p><i>Gyrinocheilus aymonieri</i> is endemic to Yunnan Province, China. Its mouth has evolved a specialized sucker-like structure as an adaptation to fast-flowing aquatic habitats, representing a remarkable evolutionary example of environmental adaptation. Here, we present a chromosome-level genome assembly of <i>G. aymonieri</i> (507 Mb) integrating HiFi, Illumina, and Hi-C sequencing data. The assembly comprises 24 chromosomes with 92.3% anchoring efficiency. Genome annotation revealed 23.02% repetitive elements, 24,078 protein-coding genes, and 55,943 transcript isoforms. The good genomic collinearity also demonstrates the accuracy of the <i>G. aymonieri</i> genome assembly at the macroscale. This high-quality genome will provide a crucial resource for understanding cypriniform evolution and different ecological adaptation mechanisms.</p>

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Chromosome-level genome assembly of the Chinese algae eater Gyrinocheilus aymonieri

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月18日

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  • Cheng Wang,
  • Yongrui Lu,
  • Chengchi Fang,
  • Xiaoni Gan,
  • Liandong Yang,
  • Shunping He

摘要

Gyrinocheilus aymonieri is endemic to Yunnan Province, China. Its mouth has evolved a specialized sucker-like structure as an adaptation to fast-flowing aquatic habitats, representing a remarkable evolutionary example of environmental adaptation. Here, we present a chromosome-level genome assembly of G. aymonieri (507 Mb) integrating HiFi, Illumina, and Hi-C sequencing data. The assembly comprises 24 chromosomes with 92.3% anchoring efficiency. Genome annotation revealed 23.02% repetitive elements, 24,078 protein-coding genes, and 55,943 transcript isoforms. The good genomic collinearity also demonstrates the accuracy of the G. aymonieri genome assembly at the macroscale. This high-quality genome will provide a crucial resource for understanding cypriniform evolution and different ecological adaptation mechanisms.