Polymorphism of genes encoding for ryanodine receptor, growth hormone, leptin and MYC protooncogene protein and meat production in Duroc pigs
2002
Urban, T. | Kuciel, J. | Mikolasova, R. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Genetiky)
This study investigated the associations of ryanodine receptor 1 (RYR1), growth hormone (GH1), leptin (LEP) and MYC protooncogene protein (MYC) with parameters of growth rate and fat deposition in 117 pigs of Duroc breed (sex ratio 1 : 1). PCR-RFLP's were genotyped for RYR1 (HhaI), GH1 (MspI and HaeII), LEP (HinfI) and MYC (HpaII) loci. The following allele frequencies were found: GH1-HaeII+=0.54 and -=0.46; GH1-MspI+=0.85 and -=0.15; LEP T=0.65 and C=0.35 and MYC A=0.82 and B=0.18, respectively. RYR1 gene was monomorphic (C=1.00). Neither of GH1 loci (HaeII and MspI) showed any effect on variability of meat performance traits under study apart from GH1-MspI, which affected average daily gain (+/+=582.44+/-7.02 g/d vs. +/-=599.85+/-8.54 g/d; P/
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