Animal Bioscience

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Single nucleotide polymorphisms for parentage testing of horse breeds in Korea

  • Sun-Young Lee (Racing Laboratory, Korea Racing Authority) ;
  • Su-Min Kim (Department of Horse Industry, Sung Woon University) ;
  • Baatartsogt Oyungerel (School of Animal Science and Biotechnology, Mongolian University of Life Sciences) ;
  • Gil-Jae Cho (College of Veterinary Medicine, Kyungpook National University)
  • Received : 2023.04.01
  • Accepted : 2023.09.05
  • Published : 2024.04.01
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Abstract

Objective: In this study, we aimed to evaluate the usability single nucleotide polymorphisms (SNPs) for parentage testing of horse breeds in Korea. Methods: The genotypes of 93 horse samples (38 Thoroughbred horses, 17 Jeju horses, 20 Quarter horses, and 18 American miniature horses) were determined using 15 microsatellite (Ms) markers (AHT4, AHT5, ASB2, ASB17, ASB23, CA425, HMS1, HMS2, HMS3, HMS6, HMS7, HTG4, HTG10, LEX3, and VHL20) and 101 SNP markers. Results: Paternity tests were performed using 15 Ms markers and 101 SNP markers in Thoroughbred horses and Quarter horses. AHT5, ASB2, ASB17, ASB23, CA425, HMS7, HTG10, and LEX3 did not follow Mendelian inheritance in Thoroughbred horses, whereas in Quarter horses, only AHT4, ASB2, and HMS2 showed Mendelian inheritance, consequently, paternity was not established. Meanwhile, 31 markers, including MNEc_2_2_2_98568918_BIEC2_502451, in Thoroughbred horses, and 30 markers, including MNEc_2_30_7430735_BIEC2_816793, in Quarter horses did not conform with Mendelian inheritance and therefore, could not be used for establishing parentage. Conclusion: The possibility of replacing Ms markers with SNP markers for paternity testing in horses was confirmed. However, further research using more samples is necessary.

Keywords

Acknowledgement

This research was supported by the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology (NRF-2020R1I1A3067905).

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