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NNAT and DIRAS3 genes are paternally expressed in pigs

  • Huan-Chen Cheng
  • Feng-Wei Zhang
  • Chang-Yan Deng
  • Cao-De Jiang
  • Yuan-Zhu Xiong
  • Feng-E Li
  • Ming-Gang Lei
Open Access
Research

Abstract

Although expression and epigenetic differences of imprinted genes have been extensively characterised in man and the mouse, little is known on livestock species. In this study, the polymorphism-based approach was used to detect the imprinting status of NNAT and DIRAS3 genes in five heterozygous pigs (based on SNP) of Large White and Meishan F1 hybrids. The results show that both genes were paternally expressed in all the tested tissues (heart, liver, spleen, lung, kidney, stomach, small intestine, skeletal muscle, fat, uterus, ovary and pituitary). In addition, the NNAT gene had two transcripts in all tested tissues, which is consistent with its counterpart in man and cattle.

Keywords

pig NNAT DIRAS3 imprinting paternally expressed 

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Copyright information

© INRA, EDP Sciences 2007

Authors and Affiliations

  • Huan-Chen Cheng
    • 1
  • Feng-Wei Zhang
    • 1
  • Chang-Yan Deng
    • 1
  • Cao-De Jiang
    • 2
  • Yuan-Zhu Xiong
    • 1
  • Feng-E Li
    • 1
  • Ming-Gang Lei
    • 1
  1. 1.Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education and Key Laboratory of Swine Genetics and Breeding of Ministry of AgricultureHuazhong Agriculture UniversityWuhanPR China
  2. 2.Department of Bio-engineering, College of Animal SciencesSouthwest UniversityChongqingPR China

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