Analysis of Changes in Genetic characteristic and Diversity of the Brindle cow(Chikso) Population

Ji Suk Yu1   Sang Won Suh2   Do Hyun Kim2   Byoungho Park3   Tae Jeong Choi4   Mi Na Park4   Yeon Soo Park5   Eun Sung Kim6   Kyoung Sub Jung7   Dae Jin Jung8   Jun Jong Baek9   Jae Don Oh2   Hak Kyo Lee2,*   

1Dept of Agriculture and Livestock Food Convergence, Jeonbuk National University, Jeonju 54896, Korea
2Dept of Animal Biotechnology, Jeonbuk National University, Jeonju 54896, Korea
3Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang 25342, Korea
4Animal Breeding and Genetics Division, National Institute of Animal Science, RDA, Cheonan 31000, Korea
5Gangwon Province Livestock Research Institute, Hongseong 25266, Korea
6Livestock Experiment Station, Jeollabuk-do Institute of Livestock and Veterinary Research, Jinan 55460, Korea
7ChungCheongBuk-Do Veterinary Service Laboratory, Cheongju 28153, Korea
8Gyeongsangbuk-do Livestock research Insititute, Youngju 36052, Korea
9Chungcheongnam-do Livestock Reasearch Institute, Cheongyang 33350, Korea


Chikso(brindle cow) is a subspecies of Hanwoo, and is one of the Korea’s native breeds. It has the characteristics of being strong and strong against disease. The black stripes around its body resemble that of a tiger. In this study, 9,663 Chikso in South Korea were classified into 4 groups based on their birth year. The polymorphism analysis of Chikso whole groups revealed the average number of alleles in each marker (number of alleles), the expected heterozygosity (HEX), the observed heterozygosity (HOB), the polymorphism information content (PIC), and the FIS mean as 16.2, 0.769, 0.759, 0.737 and 0.0061, respectively. For group D, with the birth year 2018-2020, the HEX and HOB were 0.767 and 0.760 respectively and the PIC was 0.734. The average observed heterozygosity (HOB) for each generation of the Chikso group was confirmed to be 0.753, and it was confirmed that it gradually increased from group A (0.749) to group C (0.751), and increased sharply in group D (0.760). The average of the PIC was found to be 0.732, and the most recently born group, group D (2018-2020), had the highest value of 0.734. It was confirmed that the FIS value also gradually decreased with the recent generation. The result of this study are expected to be used for enhancing the efficiency of Hanwoo Industry.

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