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

• 遗传繁育 • 上一篇    下一篇

microRNA-21和TGFBI基因在猪骨骼肌生长发育中的表达分析

朱师云1, 谢炳坤2, 梁如意1, 李奎1, 唐中林1   

  1. 1. 中国农业科学院北京畜牧兽医研究所, 北京 100193;
    2. 广西畜牧研究所, 广西南宁 530001
  • 收稿日期:2014-04-09 出版日期:2014-11-20 发布日期:2014-12-06
  • 通讯作者: 唐中林 E-mail:zhonglinqy_99@sina.com
  • 作者简介:朱师云(1989-),男,浙江人,硕士,研究方向:动物遗传育种与繁殖。
  • 基金资助:
    转基因生物新品种培育重大专项(2013ZX08009-001);国家自然科学基金(31171192);中国农业科学院科技创新工程(ASTIP-IAS05);广西家畜遗传改良重点实验室培育基地开放课题(桂牧研科2013GXKFKT-09)。

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

摘要: 试验旨在研究microRNA-21(miR-21)和转化生长因子β诱导(TGFBI)基因在长白猪骨骼肌中的表达相关性。采用实时荧光定量PCR(qPCR)方法分析了miR-21和TGFBI基因在长白成年猪中的组织表达谱,同时比较分析了其在长白猪不同发育阶段(出生前和出生后共28个发育点)背最长肌中的表达相关性。结果表明,miR-21在长白成年猪的各个组织中均表达,且分布相对平衡,在不同发育阶段的背最长肌中呈现波浪式的表达趋势;TGFBI基因在长白猪胚胎期的背最长肌中高表达,在整个背最长肌发育过程中呈现出不同的表达丰度。相关性分析表明,在胚胎期骨骼肌发育过程中,miR-21和TGFBI表达之间为显著的负相关,TGFBI可能是miR-21的调控靶标基因。

关键词: miR-21; TGFBI; 骨骼肌; 发育;

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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