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Genetic diversity within and gene flow between three draught horse breeds using genealogical information

Author

Listed:
  • H. Vostrá-Vydrová

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • L. Vostrý

    (Czech University of Life Sciences Prague, Prague, Czech Republic
    Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • B. Hofmanová

    (Czech University of Life Sciences Prague, Prague, Czech Republic)

  • E. Krupa

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • Z. Veselá

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • J. Schmidová

    (Czech University of Life Sciences Prague, Prague, Czech Republic
    Institute of Animal Science, Prague-Uhříněves, Czech Republic)

Abstract

Three draught horse breeds are maintained in the Czech Republic: the Silesian Noriker (SN), the Noriker (N), and the Czech-Moravian Belgian (CMB). Because the SN and CMB populations are currently closed to outside breeding and are endangered (Genetic Resources), the loss of the genetic variation these horses represent is concerning. Genetic diversity within and between these three breeds and their population structures was analyzed based on pedigree information. Our goal was to identify and quantify factors that affected their genetic variability. The effective population size was analyzed in each breed. The numbers of generations were 22, 32, and 32 for the SN, N, and CMB breeds, respectively, with average equivalent known generations of 9.81, 8.45, and 8.91, respectively. The effective numbers of founders and ancestors contributing to the current genetic pool were, respectively, 69.42 and 22.32 for the SN breed, 98.48 and 42.20 for the N breed, and 43.33 and 23.32 for the CMB breed. The average inbreeding coefficients were 4.6%, 2%, and 4% for the SN, N, and CMB breeds, respectively, and the average inbreeding rate was 0.5% for the SN and CMB breeds and 0.2% for the N breed. The corresponding estimates of effective population size were 95, 195, and 101 for the SN, N, and CMB breeds, respectively. These statistics suggest that the genetic variability has decreased, and without changes in breeding strategy the genetic variability might continue to decline. Using genealogical F-statistics, small genetic differences were identified between the analyzed populations (FST = 0.02).

Suggested Citation

  • H. Vostrá-Vydrová & L. Vostrý & B. Hofmanová & E. Krupa & Z. Veselá & J. Schmidová, 2016. "Genetic diversity within and gene flow between three draught horse breeds using genealogical information," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(10), pages 462-472.
    • Handle: RePEc:caa:jnlcjs:v:61:y:2016:i:10:id:91-2015-cjas
    DOI: 10.17221/91/2015-CJAS
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    References listed on IDEAS

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    1. J. Pjontek & O. Kadlečík & R. Kasarda & M. Horný, 2012. "Pedigree analysis in four Slovak endangered horse breeds," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(2), pages 54-64.
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    Cited by:

    1. Marko Halo & Eva Mlyneková & Michaela Horná & Monika Ivančíková & Andrea Hrdá, 2018. "Evaluation of genetic variability of the breed Norik of Muran according to pedigree information," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(5), pages 195-200.
    2. Hana Vostrá-Vydrová & Luboš Vostrý & Barbora Hofmanová & Nina Moravčíková & Zdeňka Veselá & Irena Vrtková & Alexandra Novotná & Radovan Kasarda, 2018. "Genetic diversity and admixture in three native draught horse breeds assessed using microsatellite markers," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(3), pages 85-93.
    3. Michala Hofmannová & Josef Přibyl & Emil Krupa & Petr Pešek, 2019. "Estimation of inbreeding effect on conception in Czech Holstein," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(7), pages 309-316.
    4. Lenka Putnová & Radek Štohl & Irena Vrtková, 2019. "Using nuclear microsatellite data to trace the gene flow and population structure in Czech horses," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(2), pages 67-77.

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