转座因子和宿主基因组的进化  

Transposable elements and host genome evolution

作　　者：金振华[1] 

机构地区：[1]中国科学院发育生物学研究所,北京100080

出　　处：《生命科学》2002年第4期220-222,共3页Chinese Bulletin of Life Sciences

摘　　要：转座因子主要是一些“自在”或“无功能”的DNA,其对宿主进化无关紧要的观点受到了质疑。新近的报道指出,它们有增强宿主基因组自身进化,对环境变化作出反应的潜在能力,很可能是遗传多样性的主要源泉。The idea that transposable elements(TEs) are mainly 'selfish' or 'junk' DNA with little importance for host evolution has challenged. Recent reports indicated that TEs have the potential to provide host genomes with the ability to enhance their own evolution. They might also be a major source of genetic diversity allowing response to environmental changes.

关 键 词：转基因子 宿主基因组 突变 进化 

分 类 号：Q75[生物学—分子生物学]