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A MOVABLE DEFENSE

机译:移动防御

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摘要

Researchers now recognize that genetic material, once simplified into neat organismal packages, is not limited to individuals or even species. Viruses that pack genetic material into stable infectious particles can incorporate some or all of their genes into their hosts' genomes, allowing remnants of infection to remain even after the viruses themselves have moved on. On a smaller scale, naked genetic elements such as bacterial plasmids and transposons, or jumping genes, often shuttle around and between genomes. It seems that the entire history of life is an incessant game of tug-of-war between such mobile genetic elements (MGEs) and their cellular hosts.
机译:现在,研究人员认识到,遗传物质一旦简化为纯净的有机体包装,便不仅限于个体甚至物种。将遗传物质包装到稳定的传染性颗粒中的病毒可以将其部分或全部基因整合到宿主的基因组中,即使病毒本身继续传播,也可以保留残留的感染物。在较小的规模上,裸露的遗传元素(例如细菌质粒和转座子或跳跃基因)经常在基因组之间和基因组之间穿梭。似乎整个生命史都是这种移动遗传元件(MGE)与它们的细胞宿主之间不断进行的拔河比赛。

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  • 来源
    《The Scientist》 |2015年第1期|46-53|共8页
  • 作者单位

    National Library of Medicine's National Center for Biotechnology Information in Bethesda, Maryland;

    Institut Pasteur in Paris, France;

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  • 正文语种 eng
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