Linkage Mapping and QTL on Chromosome 6 in Hanwoo (Korean Cattle)

  • Kim, J.W. (Institute of Biotechnology and Department of Animal Science and Biotechnology, Yeungnam University) ;
  • Park, S.I. (Institute of Biotechnology and Department of Animal Science and Biotechnology, Yeungnam University) ;
  • Yeo, J.S. (Institute of Biotechnology and Department of Animal Science and Biotechnology, Yeungnam University)
  • Received : 2002.08.20
  • Accepted : 2003.05.13
  • Published : 2003.10.01


The QTL(quantitative traits loci) linkage mapping of Hanwoo (Korean Cattle) chromosome 6 for daily gain and marbling score was performed using 378 individuals from 18 paternal half-sib families in Hanwoo. Hanwoo chromosome 6 were mapped to total length of 394.2 cM between 28 microsatellite loci using 36 microsatellite primers of BTA 6 linkage group. The QTL analysis for daily gain in Hanwoo showed 8 microsatellite loci (BM3026-5.66, EL03-5.58, BM4311-5.29, ILSTS035-4.50, BMS1242-4.37, BM1329-3.67, BM415-3.11, BMS2460-3.03) in larger than LOD score 3.0. Based on the QTL analysis for marbling score, LOD scores of 12 microsatellite loci (BM415-8.88, BM3026-7.15, ILSTS093-5.45, ILSTS035-4.91, EL03-4.69, BMS690-4.52, BM1329-4.43, BMS511-3.74, BMS1242-3.66, BMS518-3.65, BM4311-3.41, BMC4203-3.36) were found larger than 3.0.


Hanwoo (Korean Cattle);Linkage Mapping;QTL;Marbling Score;Daily Gain;Microsatellite


Supported by : Ministry of Agriculture and Forestry


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