title: Comparison of the Microsatellite and Single Nucleotide Polymorphism Methods for Discriminating among Hanwoo (Korean Native Cattle), Imported, and Crossbred Beef in Korea.
abstract: The identity of 45 Hanwo and 47 imported beef (non-Hanwoo) samples from USA and Australia were verified using the microsatellite (MS) marker and single nucleotide polymorphism (SNP) methods. Samples were collected from 19 supermarkets located in the city of Seoul and Gyeonggi province, South Korea, from 2009 to 2011. As a result, we obtained a 100% concordance rate between the MS and SNP methods for identifying Hanwoo and non-Hanwoo beef. The MS method presented a 95% higher individual discriminating value for Hanwoo (97.8%) than for non-Hanwoo (61.7%) beef. For further comparison of the MS and SNP methods, blood samples were collected and tested from 54 Hanwoo × Holstein crossbred cattle (first, second, and third generations). By using the SNP and MS methods, we correctly identified all of the first-generation crossbred cattle as non-Hanwoo; in addition, among the second and third generation crossbreds, the ratio identified as Hanwoo was 20% and 10%, respectively. The MS method used in our study provides more information, but requires sophisticated techniques during each experimental process. By contrast, the SNP method is simple and has a lower error rate. Our results suggest that the MS and SNP methods are useful for discriminating Hanwoo from non-Hanwoo breeds.
authors.affiliation: Ministry of Food and Drug Safety, Cheongwon 363-951, Korea.
authors.forename: Eun-Jeong
authors.initials: EJ
authors.lastname: Heo
authors.affiliation: Animal and Plant Quarantine Agency, Anyang 430-757, Korea.
authors.forename: Eun-Kyung
authors.initials: EK
authors.lastname: Ko
authors.affiliation: KU Center for Food Safety, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea.
authors.forename: Kun-Ho
authors.initials: KH
authors.lastname: Seo
authors.affiliation: KU Center for Food Safety, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea.
authors.forename: Jung-Whan
authors.initials: JW
authors.lastname: Chon
authors.affiliation: Ministry of Food and Drug Safety, Cheongwon 363-951, Korea.
authors.forename: Young-Jo
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Ministry of Food and Drug Safety, Cheongwon 363-951, Korea.
authors.forename: Hyun-Jung
authors.initials: HJ
authors.lastname: Park
authors.affiliation: Animal and Plant Quarantine Agency, Anyang 430-757, Korea.
authors.forename: Sung-Hwan
authors.initials: SH
authors.lastname: Wee
authors.affiliation: Animal and Plant Quarantine Agency, Anyang 430-757, Korea.
authors.forename: Jin-San
authors.initials: JS
authors.lastname: Moon
keywords: Hanwoo; genetic identification; microsatellite method; single nucleotide polymorphism method