›› 2014, Vol. 41 ›› Issue (11): 191-197.

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Expression Analysis of microRNA-21 and TGFBI Genes in Skeletal Muscle of Pigs at Different Development Stages

ZHU Shi-yun1, XIE Bing-kun2, LIANG Ru-yi1, LI Kui1, TANG Zhong-lin1   

  1. 1. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Guangxi Institute of Animal Science, Nanning 530001, China
  • Received:2014-04-09 Online:2014-11-20 Published:2014-12-06

Abstract: The aim of this study was to investigate the correlativity between expression of microRNA-21 (miR-21) and transforming growth factor beta-induced (TGFBI) in skeletal muscles of Landrace pigs. Comparative analysis was conducted between miR-21 and TGFBI in different tissues and in skeletal muscles at 28 developmental stages by quantitative PCR (qPCR). The results showed that the miR-21 was expressed without specificity in different tissues and fluctuated in skeletal muscles at developmental stages; TGFBI was expressed highly in skeletal muscles at embryonic periods and has different expression levels during developmental periods of skeletal muscles. The correlativity analysis showed that there was significantly negative correlativity between miR-21 and TGFBI in embryonic period of skeletal muscle development, which indicated that TGFBI was regulated by miR-21 in pig skeletal muscle development.

Key words: miR-21; TGFBI; skeletal muscle; development; pig

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