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오재돈,송기덕,Roxan Grace Caccho,성지연,최은지,유명상,김경태,김태훈,김성훈,김의수,이학교,공홍식 경상대학교 농업생명과학연구원 2014 농업생명과학연구 Vol.48 No.2
MYC (v-myelocytomatosis viral oncogene homologue) is a regulator gene that encodes for a nuclear phosphoprotein. Porcine MYC gene was mapped on chromosome SSC 4p13 and is associated with a variety of functions such as cell proliferation and cell growth. MYC expression is coupled to a multitude of physiological processes and is regulated by hormones, growth factors, cytokines, lymphokines, nutritional status, development and differentiation. MYC is also involved in myogenesis, muscle hyperplasia and adipogenesis. In this study, we investigated SNPs in MYC gene and their association with economic traits in Duroc, Landrace and Yorkshire populations. We detected a single point mutation in exon 3 of porcine MYC gene as a change of T to C at 906 base (amino acid position 302, nonsynomous mutation of alanine) in MYC-N domain. MYC mutation (T906C) was significantly associated with age at 90 kg in these breeds, signifying that this mutation can serve as a selection marker for growth traits in pigs.