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Abstract
DLK1 — (Drosophila like element 1) is a paternally expressed gene, associated with the callipyge phenotype in sheep. In a present study we designed a new real-time PCR alleleic discrimination assay for genotyping of a silent C/T mutation (c.639C>T) in DLK1 gene in swine. The DLK1 c.639C>T mutation was highly polymorphic in all breeds analyzed and C allele was predominant in Landrace and Duroc while T allele was more frequent in Pietrain and Puławska breed. Moreover, we analyzed mRNA expression of DLK1 and adjacent genes — MEG3 and PEG11 in muscles of swines of different breeds raised in Poland. We did not observe significantly different expression of DLK1, MEG3 or PEG11 mRNA in any of analyzed breeds. We also attempted to assess the effect of DLK1 (c.639C>T) on the expression of genes in callipyge locus but did not find significant differences between animals with alternate genotypes (C/C and T/T homozygotes).
Published Version
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