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Length polymorphism in OGT between Korean native pig, Chinese Meishan, and the Western pig breeds.


ABSTRACT: BACKGROUND:The Korean native pig (KNP) is generally thought to have come from northern China to the Korean peninsula approximately 2000 years ago. KNP pigs were at the brink of extinction in the 1980s, since then efforts have been made to restore the breed by bringing together the remaining stocks in South Korea. As a result, KNP was registered as a breed in 2006. To find additional breed-specific markers that are distinct among pig breeds, variations in O-linked N-acetylglucosamine transferase (OGT) were investigated. OGT is located on chromosome X and catalyzes the post-translational addition of a single O-linked-?-N-acetylglucosamine to target proteins. FINDINGS:Length polymorphism in the intron 20 of OGT was identified. The intron 20 of OGT from Duroc, Landrace, and Yorkshire breeds was 281-bp longer than that from either KNP or Chinese Meishan pigs. The difference between the Western pig breeds (BB genotype) and KNP or Meishan pigs (AA genotype) was due to an inserted 276-bp element and the 5-bp ACTTG. CONCLUSIONS:The polymorphism in OGT identified in this study may be used as an additional marker for determining the breed of origin among Meishan and the Western pig breeds. The length polymorphism suggests that the locus near OGT is not fixed in KNP. This marker would be relevant in determining the breed of origin in crossbred pigs between KNP pigs with known genotypes and the Western pig breeds with BB genotypes, thus confirming the contribution of the X chromosome from each breed.

SUBMITTER: Nam YS 

PROVIDER: S-EPMC4540298 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Length polymorphism in OGT between Korean native pig, Chinese Meishan, and the Western pig breeds.

Nam Yoon Seok YS   Kim Doo-Wan DW   Kim Myoung-Jik MJ   Cho Kyu-Ho KH   Kim Jong Gug JG  

Journal of animal science and technology 20150314


<h4>Background</h4>The Korean native pig (KNP) is generally thought to have come from northern China to the Korean peninsula approximately 2000 years ago. KNP pigs were at the brink of extinction in the 1980s, since then efforts have been made to restore the breed by bringing together the remaining stocks in South Korea. As a result, KNP was registered as a breed in 2006. To find additional breed-specific markers that are distinct among pig breeds, variations in O-linked N-acetylglucosamine tran  ...[more]

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