ArticleBMC evolutionary biology2015
Towards breed formation by island model divergence in Korean cattle.
Article in BMC evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Genomic breeding value prediction and accuracy assessment for carcass traits in Jeju Black Cattle using Hanwoo reference populations.Animal bioscience · 2026Article
- Effects of diets for three growing stages by rumen inocula donors onJournal of animal science and technology · 2024Article
- Genetic architecture of a composite beef cattle population.Journal of animal science · 2022Article
- Host Genetic Diversity and Infectious Diseases. Focus on Wild Boar, Red Deer and Tuberculosis.Animals : an open access journal from MDPI · 2021Review
- Genetic characteristics of Korean Jeju Black cattle with high density single nucleotide polymorphisms.Animal bioscience · 2021Article
- Identifying Loci Under Positive Selection in Yellow Korean Cattle (Hanwoo).Evolutionary bioinformatics online · 2019Article
- Genome-wide analysis of Hanwoo and Chikso populations using the BovineSNP50 genotyping array.Genes & genomics · 2018Article
- Genetic diversity and divergence among Korean cattle breeds assessed using a BovineHD single-nucleotide polymorphism chip.Asian-Australasian journal of animal sciences · 2018Article
- Comparison of meat quality, fatty acid composition and aroma volatiles of Chikso and Hanwoo beef.Asian-Australasian journal of animal sciences · 2018Article
- Demographic Trends in Korean Native Cattle Explained Using Bovine SNP50 Beadchip.Genomics & informatics · 2016Article
- A genome-wide assessment of genetic diversity and population structure of Korean native cattle breeds.BMC genetics · 2016Article
- Local and global patterns of admixture and population structure in Iranian native cattle.BMC genetics · 2016Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe main cattle breed in Korea is the brown Hanwoo, which has been under artificial selection within a national breeding program for several decades. Varieties of the Hanwoo known as Jeju Black and Chikso were not included in the breeding program and remained isolated from the effects of recent artificial selection advancements. We analysed the Jeju Black and Chikso populations in regards to their genetic variability, state of inbreeding, as well as level of differentiation from the mainland Hanwoo population.
resultsJeju Black and Chikso were found to have small estimated effective population sizes (N e ) of only 11 and 7, respectively. Despite a small N e , higher than expected heterozygosity levels were observed (0.303 and 0.306), however, lower allelic richness was found for the two island populations (1.76 and 1.77) compared to the mainland population (1.81). The increase in heterozygosity could be due to environmental disease challenges that promoted maintenance of higher genetic variability; however, no direct proof exists. Increased heterozygosity due to a first generation crossing of genetically different populations is not recorded. The differentiation between the Korean populations had F ST values between 0.014 and 0.036 which is not as high as the differentiation within European beef or dairy cattle breeds (0.047-0.111). This suggests that the three populations have not separated into independent breeds.
conclusionResults agree with an island model of speciation where the brown Hanwoo represents the ancestral breed, whilst the Jeju Black and Chikso diverge from this common ancestor, following different evolutionary trajectories. Nevertheless, differences are minor and whether Jeju Black and Chikso cattle will develop into discrete breeds or reintegrate with the main population has to be seen in the future and will largely depend on human management decisions. This offers a rare opportunity to accompany the development of new breeds but also poses challenges on how to preserve these incipient breeds and ensure their long term viability.
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