{
  "abstract": "Reliable inferences of interspecific hybridization require the use of diagnostic Mendelian markers and, preferably, multilocus approaches in order to distinguish true hybrids and backcrosses from artifacts that may be generated by other types of markers, e.g., multigene families, such as nuclear ribosomal DNA (nrDNA). We re-examine evidence for hybridization between the clams Ruditapes decussatus (Linnaeus, 1758) and Ruditapes philippinarum (Adams and Reeve, 1850) by analyzing samples from 11 French populations, assessing the performance and limitations of nrDNA markers and comparing them with alternative molecular markers. Our results indicate that PCR patterns previously reported in the literature, while compatible with hybridization events, may also be explained by methodological artifacts associated with nrDNA markers. Consequently, natural hybridization between these two species remains unconfirmed and requires further investigation using more robust Mendelian markers. Overall, our study highlights the critical importance of marker choice in hybridization studies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Florentine Riquet"
    },
    {
      "name": "Sylvie Lapègue"
    },
    {
      "name": "Serge Heurtebise"
    },
    {
      "name": "Pierre Boudry"
    },
    {
      "name": "Philippe Borsa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9hac5w3apnf54.bib",
  "cited_by": 0,
  "doi": "10.1051/alr/2026026",
  "fulltext_url": null,
  "id": "9hac5w3apnf54",
  "issns": [
    "0990-7440",
    "1765-2952"
  ],
  "landing_url": "https://hal.science/hal-05854096v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdu"
    ],
    [
      "hal",
      "0.sdv"
    ],
    [
      "openalex",
      "1311|Genetic diversity and population structure"
    ]
  ],
  "openalex": "W7213224260",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "EDP Sciences",
  "ris": "https://research.draconitic.com/paper/9hac5w3apnf54.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T12:20:44Z",
      "native_id": "hal-05854096",
      "source": "hal",
      "url": "https://hal.science/hal-05854096v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "openalex:1311|Genetic diversity and population structure",
      "subfield": "genetics-genomics"
    }
  ],
  "title": "Questioning the use of repeated nuclear DNA markers for assessing hybrids in marine bivalves: a case-study in Ruditapes spp. clams",
  "title_text": "Questioning the use of repeated nuclear DNA markers for assessing hybrids in marine bivalves: a case-study in Ruditapes spp. clams",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:20:25Z",
  "url": "https://research.draconitic.com/paper/9hac5w3apnf54",
  "venue": "Aquatic Living Resources",
  "versions": []
}