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KMID : 1025520050470030341
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Journal of Animal Science and Technology
2005 Volume.47 No. 3 p.341 ~ p.354
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Assessment of Genetic Diversity and Relationships Between Korean Cattle and Other Cattle Breeds by Microsatellite Loci
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Yoon Du-Hak
Park Eung-Woo
Lee Seung-Hwan
Lee Hak-Kyo
Oh S.-J.
Cheong I. C.
Hong Ki-Chang
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Abstract
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For the genetic assessment of the cattle breeds including Hanwoo, eleven microsatellite markers on ten bovine autosomes were genetically characterized for 618 individuals of nineteen cattle breeds; North Eastern Asian breeds (Korean cattle, Korean Black cattle, Japanese Black cattle, Japanese Brown cattle, Yanbian cattle), Chinese yellow cattle (Luxi cattle, Nanyang cattle), European Bos taurus (Angus, Hereford, Charolais, Holstein, Limousin), African Bos taurus (N’Dama, Baoule), African Bos indicus (Kavirondo Zebu, White Fulani), Asian Bos indicus (Sahiwal, Nelore) and one Bali cattle, Bos banteng as an outbreed-reference population. Allele frequencies derived from the genotyping data were used in estimating heterozygosities, gene diversities and genetic distances. The microsatellite loci were highly polymorphic, with a total of 162 different alleles observed across all loci. Variability in allele numbers and frequencies was observed among the breeds. The average expected heterozygosity of North Eastern Asian breeds was higher than those of European and African taurines, but lower than those of Asian and African indicines. Genetic distances were estimated using Nei’s DA genetic distance and the resultant DA matrix was used in the construction of the phylogenetic trees. The genetic distances between North Eastern Asian cattle breeds and Bos indicus were similar with those between European Bos taurus and Bos indicus, and African Bos taurus and Bos indicus, respectively. The clusters were clearly classified into North Eastern Asian, European and African taurines groups as well as different cluster with Chinese mainland breeds, firstly out-grouping with Bos indicus. These results suggest that Korean cattle, Hanwoo, had not been originated from a crossbred between Bos primigenius in Europe and Bos indicus in India and North Eastern Asian Bos taurus may be have separate domestication from European and African Bos taurus.
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KEYWORD
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Microsatellite, Bos indicus, Bos taurus, Hanwoo, Phylogenetic analysis
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