About the Authors

Eija H. Seppälä

Affiliations Research Programs Unit, Molecular Medicine, University of Helsinki, Helsinki, Finland, Department of Veterinary Biosciences and Department of Medical Genetics, University of Helsinki, Helsinki, Finland, Folkhälsan Institute of Genetics, Helsinki, Finland

Arnold J. J. Reuser

Affiliation Departments of Clinical Genetics and Paediatrics, Center for Lysosomal and Metabolic Diseases, Erasmus MC, Rotterdam, The Netherlands

Hannes Lohi

hannes.lohi@helsinki.fi

Affiliations Research Programs Unit, Molecular Medicine, University of Helsinki, Helsinki, Finland, Department of Veterinary Biosciences and Department of Medical Genetics, University of Helsinki, Helsinki, Finland, Folkhälsan Institute of Genetics, Helsinki, Finland

Competing Interests

A DNA test for the Finnish Lapphund, Swedish Lapphund and Lapponian Herders is commercially available through Genoscoper Oy (Ltd), which is partly owned by HL. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: EHS HL. Performed the experiments: EHS. Analyzed the data: EHS. Contributed reagents/materials/analysis tools: AJJR HL. Wrote the paper: EHS AJJR HL.