{
  "abstract": "Speciation is the process by which barriers to gene flow evolve between populations. As speciation approaches completion, genome-wide divergence can be maintained in the face of hybridization. Because real-time observations of genomic changes following hybridization in natural populations remain rare, little is known about the processes and mechanisms by which introgressed genomes are purged in nature. Here we report a 9-year genomic monitoring of a tsunami-induced hybrid stickleback population, revealing rapid genome-wide purging within only a few generations. On 11 March 2011, a devastating tsunami struck the Tohoku Region, Japan, creating new stickleback habitats and inducing hybridization between freshwater Gasterosteus aculeatus and marine Gasterosteus nipponicus. Within the first few generations, G. nipponicus alleles were purged at major loci responsible for reproductive isolation, including ancestral-X and neo-X chromosomes. These loci are involved in freshwater survival, migratory divergence associated with habitat choice, sexual isolation and hybrid sterility. Subsequently, G. nipponicus alleles were purged across the genome except at several loci. We provide direct evidence from a natural population that rapid genome-wide purging allows species identity to persist even after extensive introgression. Elucidating the genetic mechanisms underlying genome-wide purging is crucial for understanding the factors that drive progress towards speciation completion.",
  "abstract_shown": true,
  "affiliations": [
    "Ecological Genetics Laboratory, National Institute of Genetics, Mishima, Japan",
    "Genetics Course, Graduate University for Advanced Studies, Mishima, Japan",
    "Field Science Centre for Northern Biosphere, Hokkaido University, Tomakomai, Japan",
    "The Institute of Regional Development, Gifu Kyoritsu University, Ogaki, Japan",
    "Field Science Education and Research Center, Kyoto University, Kyoto, Japan",
    "Faculty of Science and Engineering, Ishinomaki Senshu University, Ishinomaki, Japan",
    "Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan",
    "Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan",
    "Department of Applied Aquabiology, National Fisheries University, Shimonoseki, Japan",
    "International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, Otsuchi, Japan",
    "VANISH STANDARD CO. LTD., Shibuya, Japan",
    "Faculty of Fisheries, Kagoshima University, Kagoshima, Japan",
    "Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Minato, Japan",
    "Industry-Academia-Government Co-Creation Unit, University of the Ryukyus, Okinawa, Japan",
    "Laboratory of Molecular Ecological Genetics, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan",
    "Department of Evolutionary Genomics, Brain Research Institute, Niigata University, Niigata, Japan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 18,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Takuya K. Hosoki",
      "orcid": "0000-0002-3200-2938"
    },
    {
      "affs": [
        3
      ],
      "name": "Seiichi Mori"
    },
    {
      "affs": [
        0
      ],
      "name": "Kotaro Kagawa",
      "orcid": "0000-0002-5749-5679"
    },
    {
      "affs": [
        3
      ],
      "name": "Shotaro Nishida"
    },
    {
      "affs": [
        0,
        3,
        4,
        5
      ],
      "name": "Manabu Kume",
      "orcid": "0000-0001-7287-029X"
    },
    {
      "affs": [
        6,
        7
      ],
      "name": "Atsushi J. Nagano"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Hiyu Kanbe",
      "orcid": "0000-0003-1187-3424"
    },
    {
      "affs": [
        0,
        8
      ],
      "name": "Ryo Kakioka",
      "orcid": "0000-0002-1841-5488"
    },
    {
      "affs": [
        9,
        10
      ],
      "name": "Kenta Nakamoto"
    },
    {
      "affs": [
        9
      ],
      "name": "Yuki Iino"
    },
    {
      "affs": [
        9,
        11
      ],
      "name": "Masafumi Kodama"
    },
    {
      "affs": [
        9
      ],
      "name": "Satoki Oba"
    },
    {
      "affs": [
        12,
        13
      ],
      "name": "Taekyoung Seong",
      "orcid": "0000-0002-4123-9195"
    },
    {
      "affs": [
        12
      ],
      "name": "Naoki Kabeya",
      "orcid": "0000-0002-2055-6554"
    },
    {
      "affs": [
        0,
        14
      ],
      "name": "Asano Ishikawa"
    },
    {
      "affs": [
        0,
        15
      ],
      "name": "Kohta Yoshida",
      "orcid": "0000-0002-5896-7383"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Yo Y. Yamasaki",
      "orcid": "0000-0002-7495-2712"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Jun Kitano",
      "orcid": "0000-0001-8659-5698"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/132rf5j7wxa0t.bib",
  "cited_by": 2,
  "doi": "10.1038/s41559-026-03184-1",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13736658/",
  "id": "132rf5j7wxa0t",
  "issns": [
    "2397-334X"
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  "landing_url": "https://doi.org/10.1038/s41559-026-03184-1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
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      "1311|Genetic diversity and population structure"
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  "pdf_url": "https://www.nature.com/articles/s41559-026-03184-1.pdf",
  "pmcid": "PMC13736658",
  "pmid": "42791313",
  "published": "2026-09-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/132rf5j7wxa0t.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T12:22:03Z",
      "native_id": "PMC13736658",
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      "url": "https://doi.org/10.1038/s41559-026-03184-1"
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  "subjects": [
    {
      "field": "biology",
      "origin": "openalex:1311|Genetic diversity and population structure",
      "subfield": "genetics-genomics"
    }
  ],
  "title": "Rapid genome-wide purging following tsunami-induced hybridization in a stickleback population",
  "title_text": "Rapid genome-wide purging following tsunami-induced hybridization in a stickleback population",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T12:22:03Z",
  "url": "https://research.draconitic.com/paper/132rf5j7wxa0t",
  "venue": "Nature Ecology & Evolution",
  "versions": []
}