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A genetic marker for the maternal identification of Atlantic salmon × brown trout hybrids

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Abstract

Interspecific hybridization between Atlantic salmon and brown trout is well documented, but why it should vary so much among populations is not clear. Determining the maternal origin of hybrids can provide insights into the mechanisms underlying interspecific hybridization, but this information is lacking in many studies. Here we present a species-specific mitochondrial DNA marker for the identification of the maternal origin of hybrids. This marker involves only one PCR step followed by fragment analysis, can be integrated within PCR multiplexing for existing nuclear markers for hybrid identification, and is therefore faster and more cost-effective than previous methods.

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Acknowledgments

We thank Ian Fleming (Memorial University of Newfoundland) for providing samples from Conne River (Canada) and all field workers who have collected the samples included in this study. This project was funded by the Norwegian Directorate for Nature Management.

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Authors and Affiliations

  1. Norwegian Institute for Nature Research (NINA), P.O. Box 5685 Sluppen, 7485, Trondheim, Norway

    Sten Karlsson, Merethe Hagen, Line Eriksen, Kjetil Hindar & Arne J. Jensen

  2. Department of BioSciences, Swansea University, Swansea, SA2 8PP, UK

    Carlos Garcia de Leaniz

  3. Marine Institute, Newport, Co. Mayo, Ireland

    Deirdre Cotter

  4. Institute of Freshwater Fisheries, Keldnaholti 112, Reykjavik, Iceland

    Guðni Guðbergsson & Sigurður Guðjónsson

  5. Kilpisjärvi Biological Station, University of Helsinki, Käsivarrentie 14622, 99490, Kilpisjärvi, Finland

    Kimmo Kahilainen

  6. Finnish Game and Fisheries Research Institute, P.O. Box 413, 90014, Oulun yliopisto, Finland

    Atso Romakkaniemi

  7. Division of Population Genetics, Department of Zoology, Stockholm University, 106 91, Stockholm, Sweden

    Nils Ryman

Authors
  1. Sten Karlsson
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  2. Merethe Hagen
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  3. Line Eriksen
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  4. Kjetil Hindar
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  5. Arne J. Jensen
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  6. Carlos Garcia de Leaniz
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  7. Deirdre Cotter
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  8. Guðni Guðbergsson
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  9. Kimmo Kahilainen
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  10. Sigurður Guðjónsson
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  11. Atso Romakkaniemi
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  12. Nils Ryman
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Corresponding author

Correspondence to Sten Karlsson.

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Karlsson, S., Hagen, M., Eriksen, L. et al. A genetic marker for the maternal identification of Atlantic salmon × brown trout hybrids. Conservation Genet Resour 5, 47–49 (2013). https://doi.org/10.1007/s12686-012-9730-6

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  • DOI: https://doi.org/10.1007/s12686-012-9730-6

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