Frequency of DLK1 c.639C>T polymorphism and the analysis of MEG3/DLK1/PEG11 cluster expression in muscle of swine raised in Poland

Autor: M. Różycki, Katarzyna Piórkowska, Barbara Rejduch, Maria Oczkowicz, Katarzyna Ropka-Molik
Rok vydání: 2011
Předmět:
Zdroj: Meat Science. 88:627-630
ISSN: 0309-1740
Popis: 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 Pulawska 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).
Databáze: OpenAIRE