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KMID : 1025520130550030185
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Journal of Animal Science and Technology
2013 Volume.55 No. 3 p.185 ~ p.194
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Analysis of Genetic Characteristics and Probability of Individual Discrimination in Korean Indigenous Chicken Brands by Microsatellite Marker
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Suh Sang-Won
Cho Chang-Yeon
Kim Jae-Hwan
Choi Seong-Bok
Kim Young-Sin
Kim Hyun
Seong Hwan-Hoo
Lim Hyun-Tae
Cho Jae-Hyeon
Ko Yeoung-Gyu
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Abstract
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Microsatellite markers have been a useful genetic tool in determining diversity, relationships and individual discrimination studies of livestock. The level of genetic diversity, relationships among two Korean indigenous chicken brandpopulations (Woorimatdag: WR, Hanhyup3: HH) as well as two pure populations(White Leghorn: WL, Rhode Island Red: RIR) were analyzed, based on 26 MS markers. A total of 191 distinct alleles were observed across the four chicken populations, and 47(24.6%) of these alleles were unique to only one population. The mean HExp and PIC were estimated as 0.667 and 0.630. Nei’s DA genetic distance and factorial correspondence analysis(FCA) showed that the four populations represented four distinct groups. However, the genetic distance between each Korean indigenous chicken brand(WR, HH) and the pure population(WL, RIR) were threefold that among the WR and HH. For the STRUCTURE analyses, the most appropriate number of clusters for modeling the data was determined to be three. The expected probabilities of identity among genotypes of random individuals(PI) were calculated as 1.17×10－49(All 26 markers) and 1.14×10－15, 7.33×10－20(9, 12 with the highest PI value, respectively). The results indicated that the brand chicken breed traceability system employing the own highest PI value 9 to 12 markers, and might be applicable to individual identification of Korean indigenous chicken brand.
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KEYWORD
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Microsatellite, Genetic relationship, Korean indigenous chicken brand, Identification
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