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<p>Ranaviruses infect cold-blooded vertebrates (amphibians, reptiles and fish), causing amphibian mass mortality events worldwide. <i>Frog Virus 3</i> (FV3) and <i>Common midwife toad virus</i> (CMTV) have been responsible for amphibian declines in the United Kingdom and Spain, respectively. The Pyrenees National Park (PNP) is a protected area in France, where native amphibian species are being threatened by the introduction of non-native fish and the emerging fungal pathogen <i>Batrachochytrium dendrobatidis</i> (<i>Bd</i>). To our knowledge, information concerning ranavirus status within the PNP is scarce. Therefore, we analyzed samples from 239 archived specimens from three anuran species (<i>Alytes obstetricans, Rana temporaria,</i> and <i>Bufo spinosus</i>), collected from 2007 to 2017, for ranavirus presence using a qPCR assay. Results revealed ranavirus presence in three of the four sampled lakes, infecting two anuran species (<i>A. obstetricans</i> and <i>R. temporaria</i>). We provide evidence that an FV3-like virus has been present in amphibians from the PNP since at least 2009. Further efforts should be taken to understand the impacts of FV3 on amphibians inhabiting the Pyrenees.</p>

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Ranavirus in native amphibians from the Pyrenees National Park, France: a case study

  • 期刊论文

  • 发表日期：

    2025年3月18日

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  • Alexandra Peñafiel-Ricaurte,
  • Stephen J. Price,
  • Matthew C. Fisher,
  • Jaime Bosch,
  • Andrew A. Cunningham,
  • Claudio Azat

摘要

Ranaviruses infect cold-blooded vertebrates (amphibians, reptiles and fish), causing amphibian mass mortality events worldwide. Frog Virus 3 (FV3) and Common midwife toad virus (CMTV) have been responsible for amphibian declines in the United Kingdom and Spain, respectively. The Pyrenees National Park (PNP) is a protected area in France, where native amphibian species are being threatened by the introduction of non-native fish and the emerging fungal pathogen Batrachochytrium dendrobatidis (Bd). To our knowledge, information concerning ranavirus status within the PNP is scarce. Therefore, we analyzed samples from 239 archived specimens from three anuran species (Alytes obstetricans, Rana temporaria, and Bufo spinosus), collected from 2007 to 2017, for ranavirus presence using a qPCR assay. Results revealed ranavirus presence in three of the four sampled lakes, infecting two anuran species (A. obstetricans and R. temporaria). We provide evidence that an FV3-like virus has been present in amphibians from the PNP since at least 2009. Further efforts should be taken to understand the impacts of FV3 on amphibians inhabiting the Pyrenees.