Molecular Biology Reports

, Volume 38, Issue 2, pp 827–832

Real-time reverse transcription–PCR expression profiling of porcine troponin I family in three different types of muscles during development

  • H. Yang
  • Z. Y. Xu
  • M. G. Lei
  • F. E. Li
  • C. Y. Deng
  • Y. Z. Xiong
  • B. Zuo
Article

Abstract

In this study, the expression profiling of three troponin I isoforms (TNNI1, TNNI2 and TNNI3) was investigated in two pig breeds differing in muscularity (Yorkshire and Meishan) at six stages (fetal 60 days and postnatal 3, 35, 60, 120, and 180 days) and three types of muscles (longissimus dorsi muscle, LD; semitendinosus, ST; cardiac muscle, CM) using relative real-time quantitative PCR. Significant differences of troponin I expression in three muscles were found between Yorkshire and Meishan breeds at some stages. The expression peak of TNNI1 and TNNI2 in LD and ST was at postnatal 35 or 60 days in Yorkshire and at postnatal 120 or 180 days in Meishan pigs, while it occurred in CM at postnatal 3 days in two pig breeds. The relative expression values of TNNI1 and TNNI2 were significantly higher in LD than ST at most of stages after birth. The expression ratio of TNNI2 versus TNNI1 favoured TNNI2 expression in ST and LD, but on the contrary in CM. The expression peak of TNNI3 occurred at postnatal 60 and 120 days in Yorkshire and Meishan pigs, respectively. TNNI1 and TNNI3 were co-expressed in CM during the fetal and earlier stages after birth.

Keywords

Troponin I Expression profiling Pig Longissimus Dorsi muscle Semitendinosus muscle Cardiac muscle 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • H. Yang
    • 1
    • 2
    • 3
  • Z. Y. Xu
    • 1
    • 2
  • M. G. Lei
    • 1
    • 2
  • F. E. Li
    • 1
    • 2
  • C. Y. Deng
    • 1
    • 2
  • Y. Z. Xiong
    • 1
    • 2
  • B. Zuo
    • 1
    • 2
  1. 1.Key Laboratory of Swine Genetics and Breeding, Ministry of AgricultureCollege of Animal Science and Veterinary Medicine, Huazhong Agricultural UniversityWuhanPeople’s Republic of China
  2. 2.Key Lab of Agricultural Animal Genetics and Breeding, Ministry of EducationCollege of Animal Science and Veterinary Medicine, Huazhong Agricultural UniversityWuhanPeople’s Republic of China
  3. 3.Livestock and Poultry Breeding Center of Hubei ProvinceWuhanPeople’s Republic of China

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