生物技术通报 ›› 2014, Vol. 0 ›› Issue (3): 73-78.

• 研究报告 • 上一篇    下一篇

长穗偃麦草Actin基因片段克隆及表达模式分析

郭强, 孟林, 毛培春, 田小霞, 李杉杉, 张琳   

  1. (北京市农林科学院 北京草业与环境研究发展中心,北京 100097)
  • 收稿日期:2013-09-16 出版日期:2014-03-29 发布日期:2014-03-31
  • 作者简介:郭强,男,博士,助理研究员,研究方向:草类植物逆境生理与分子生物学;E-mail:guoqiang81@yeah.net
  • 基金资助:
    国家自然科学基金项目(31272489),北京市农林科学院科技创新能力建设专项(KJCX20140103)

Cloning and Expression Pattern Analysis of Actin Gene Fragment from Elytrigia elongata

Guo Qiang, Meng Lin, Mao Peichun, Tian Xiaoxia, Li shanshan, Zhang Lin   

  1. (Beijing Research and Development Center for Grasses and Environment,Beijing Academy of Agriculture and Forestry Science,Beijing 100097)
  • Received:2013-09-16 Published:2014-03-29 Online:2014-03-31

摘要: 根据已报道的其他植物肌动蛋白(Actin,ACT)基因的保守序列设计一对简并性引物,以长穗偃麦草根中总RNA为模板,采用RT-PCR方法克隆出 ACT基因,命名为 EeACT。结果表明,该基因片段长度598 bp,编码198个氨基酸,与其他植物ACT氨基酸序列同源性较高,达90%以上。低温、盐及干旱处理12 h, EeACT在其地上部与根中的表达水平没有显著差异,说明 EeACT表达稳定。

关键词: 长穗偃麦草, Actin基因, RT-PCR, 同源克隆

Abstract: A pair of degenerate primers was designed based on the conserved sequences of the actin(ACT)genes from other plants. Total RNA was extracted from the roots of Elytrigia elongata to obtain an ACT gene fragment by reverse transcription polymerase chain reaction(RT-PCR). Results showed that the length of EeACT gene fragment was 598 bp encoding a 198 amino acids. The deduced amino acid sequence of EeACT shared over 90% amino acid homology compared with other plants ACT. No significant differences in expression level of EeACT were found between shoots and roots among low temperature, salt and drought treatments for 12 h, indicating that expression of EeACT is stable.

Key words: Elytrigia elongata, Actin gene, RT-PCR, Homo-cloning