【摘要】 随着植物转基因技术研究的深入和发展,转基因沉默现象已引起越来越多人的关注。在介绍转基因沉默的概念、研究意义、分子机理的基础上,分别对染色体DNA水平、转录水平和转录后水平的转基因沉默原因及克服对策进行了综述,以期为克服转基因沉默、提高转基因的表达效率提供参考。更多还原

【Abstract】 With the deepening and development of plant transgenic researching skills,the phenomena of transgene silencing have been paid more attention on.Based on the conception,research significance and bio-mechanism,the causes and countermeasures of transgene silencing on the levels of chromosome DNA,transcription and post-transcription were summarized in order to give a reference to overcome the trangene silencing and to raise the expressive efficiency of transgene.更多还原