Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis

Idiopathic epilepsy (IE) has been known to be inherited in the Belgian Tervuren for many decades. Risk genotypes for IE in this breed have recently been identified on Canis familiaris chromosomes (CFA) 14 and 37. In the current study, the allele frequencies of these loci were analyzed to determine w...

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Main Authors: Nathan Kinsey, Janelle M. Belanger, Paul J. J. Mandigers, Peter A. Leegwater, Tiina Heinonen, Marjo K. Hytönen, Hannes Lohi, Elaine A. Ostrander, Anita M. Oberbauer
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Genes
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Online Access:https://www.mdpi.com/2073-4425/15/1/114
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author Nathan Kinsey
Janelle M. Belanger
Paul J. J. Mandigers
Peter A. Leegwater
Tiina Heinonen
Marjo K. Hytönen
Hannes Lohi
Elaine A. Ostrander
Anita M. Oberbauer
author_facet Nathan Kinsey
Janelle M. Belanger
Paul J. J. Mandigers
Peter A. Leegwater
Tiina Heinonen
Marjo K. Hytönen
Hannes Lohi
Elaine A. Ostrander
Anita M. Oberbauer
author_sort Nathan Kinsey
collection DOAJ
description Idiopathic epilepsy (IE) has been known to be inherited in the Belgian Tervuren for many decades. Risk genotypes for IE in this breed have recently been identified on Canis familiaris chromosomes (CFA) 14 and 37. In the current study, the allele frequencies of these loci were analyzed to determine whether dog breeders had employed a purposeful selection against IE, leading to a reduction in risk-associated allele frequency within the breed over time. The allele frequencies of two generational groupings of Belgian Tervuren with and without IE were compared. Allele frequencies for risk-associated alleles on CFA14 were unchanged between 1985 and 2015, whereas those on CFA37 increased during that time in the control population (<i>p</i> < 0.05). In contrast, dogs with IE showed a decrease (<i>p</i> < 0.05) in the IE risk-associated allele frequency at the CFA37 locus. Seizure prevalence in the Belgian Tervuren appears to be increasing. These results suggest that, despite awareness that IE is inherited, selection against IE has not been successful.
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spelling doaj.art-5e4bef0b034c4d1d868db85a763d66eb2024-01-26T16:43:40ZengMDPI AGGenes2073-44252024-01-0115111410.3390/genes15010114Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic AnalysisNathan Kinsey0Janelle M. Belanger1Paul J. J. Mandigers2Peter A. Leegwater3Tiina Heinonen4Marjo K. Hytönen5Hannes Lohi6Elaine A. Ostrander7Anita M. Oberbauer8Department of Animal Science, University of California, Davis, CA 95616, USADepartment of Animal Science, University of California, Davis, CA 95616, USADepartment of Clinical Sciences, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The NetherlandsDepartment of Clinical Sciences, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The NetherlandsDepartment of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, FinlandDepartment of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, FinlandDepartment of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, FinlandNational Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USADepartment of Animal Science, University of California, Davis, CA 95616, USAIdiopathic epilepsy (IE) has been known to be inherited in the Belgian Tervuren for many decades. Risk genotypes for IE in this breed have recently been identified on Canis familiaris chromosomes (CFA) 14 and 37. In the current study, the allele frequencies of these loci were analyzed to determine whether dog breeders had employed a purposeful selection against IE, leading to a reduction in risk-associated allele frequency within the breed over time. The allele frequencies of two generational groupings of Belgian Tervuren with and without IE were compared. Allele frequencies for risk-associated alleles on CFA14 were unchanged between 1985 and 2015, whereas those on CFA37 increased during that time in the control population (<i>p</i> < 0.05). In contrast, dogs with IE showed a decrease (<i>p</i> < 0.05) in the IE risk-associated allele frequency at the CFA37 locus. Seizure prevalence in the Belgian Tervuren appears to be increasing. These results suggest that, despite awareness that IE is inherited, selection against IE has not been successful.https://www.mdpi.com/2073-4425/15/1/114idiopathic epilepsyseizureBelgian Tervurenselective breedingneurological disorderdog
spellingShingle Nathan Kinsey
Janelle M. Belanger
Paul J. J. Mandigers
Peter A. Leegwater
Tiina Heinonen
Marjo K. Hytönen
Hannes Lohi
Elaine A. Ostrander
Anita M. Oberbauer
Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
Genes
idiopathic epilepsy
seizure
Belgian Tervuren
selective breeding
neurological disorder
dog
title Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
title_full Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
title_fullStr Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
title_full_unstemmed Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
title_short Idiopathic Epilepsy Risk Allele Trends in Belgian Tervuren: A Longitudinal Genetic Analysis
title_sort idiopathic epilepsy risk allele trends in belgian tervuren a longitudinal genetic analysis
topic idiopathic epilepsy
seizure
Belgian Tervuren
selective breeding
neurological disorder
dog
url https://www.mdpi.com/2073-4425/15/1/114
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