Journal of Animal Breeding and Genomics (J Anim Breed Genom)
Jeong-Woo Seo1, Hak-Kyo Lee2, Kwangdo Park2, Joonho Lee1,*
1GeneApps Co., Ltd., Gangnam, 06105, Korea
2Department of animal biotechnology, Jeonbuk National University, Jeonju, Korea
Correspondence to Joon-Ho Lee, E-mail: joonho@gene-apps.com
Volume 7, Number 1, Pages 17-24, March 2023.
Journal of Animal Breeding and Genomics 2023, 7(1), 17-24. https://doi.org/10.12972/jabng.20230003
Received on 15 December, 2022, Revised on 21 March, 2023, Accepted on 21 March, 2023, Published on 31 March, 2023.
Copyright © 2023 Korean Society of Animal Breeding and Genetics.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0).
Recently, Jersey cattle were introduced and produced in Korea. The number of introduced Jersey cattle was relatively small compared to the Holstein breed, and there are few related studies. This study was conducted to investigate the differences in single nucleotide polymorphism (SNP) variations and to characterize linkage disequilibrium (LD) between Jersey and Holstein populations in Korea. High-density SNP data were collected from 120 Jersey cattle and 921 Holstein cattle. SNP genotypes were identified using Illumina BovineSNP50 version3 BeadChip, which covers 53,218 SNPs located across all chromosomes. For a fair comparison of LD measurement, 29,127 markers which were common after quality control in both breeds were selected. The allele frequencies of all SNP markers were compared in both breeds, especially for the SNPs which showed segregation in only one breed. The measures of the LD (r2), the square of the correlation coefficient between the alleles at two loci that are carried by haplotypes, were calculated. Relatively small genetic diversity was found in Jersey population by the statistics of allele frequencies, heterozygosity, r2 between adjacent markers, and effective population size
Allele Frequency, Effective Population Size, Holstein, Jersey, Linkage Disequilibrium
본 논문은 농촌진흥청 연구사업 (세부과제번호: PJ01620003)의 지원에 의해 이루어진 것임.
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