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Article

Skeletal muscle expression analysis of fat metabolism genes in pig

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Pages 171-173 | Published online: 07 Mar 2016
 

Abstract

Fat content and backfat thickness are important polygenic parameters influencing meat quality and carcass traits in pigs. Up to now, there is a lack of knowledge on the expression level of the genes encoding for enzymes involved in fatty acid metabolism in porcine skeletal muscle. In the present study we analysed, by quantitative real time PCR, the expression of three genes, acetyl-CoA carboxylase (ACACA), ATP citrate lyase (ACL) and fatty acid synthase (FASN) in skeletal muscle tissue samples of Italian Large White and Italian Duroc pigs with divergent breeding values for backfat thickness or visible intramuscular fat. Significant differences of the expression level for ACACA gene (P=0.04) and for ACL gene (P=0.02) were observed between the two breeds, comparing the samples selected for backfat thickness trait. The expression analysis of FASN gene in the samples with different genotype at the SNP c.265C>T showed that the TT genotype presented the lowest values in both breeds. The differences observed between breeds should be further considered to investigate the putative involvement of these genes on fat deposition traits.

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