Paleovirology - ghosts and gifts of viruses past.

Paleovirology - ghosts and gifts of viruses past.
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DOI:
10.1016/j.coviro.2011.06.007
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发表时间:
2011-10
影响因子:
5.9
通讯作者:
Malik, Harmit S.
Malik, Harmit S.
中科院分区:
医学2区
文献类型:
--
作者:
Patel, Maulik R.;Emerman, Michael;Malik, Harmit S.

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古病毒学的新兴领域是研究古代病毒(古病毒)的进化年龄和对宿主生物学的影响。尽管历史上一直强调逆转录病毒,但最近从一大批病毒中发现了古病毒“化石”。这些病毒印记颠覆了人们长期以来对病毒年龄和变异率的看法。虽然“直接”古病毒学依赖于在动物基因组中插入病毒基因,但检查宿主基因对古病毒感染的适应性变化为做出“间接”古病毒学推断提供了一种补充策略。最后,病毒还通过提供宿主为其自身目的而驯化的基因来影响宿主生物学。
The emerging field of paleovirology aims to study the evolutionary age and impact of ancient viruses (paleoviruses) on host biology. Despite a historical emphasis on retroviruses, paleoviral ‘fossils’ have recently been uncovered from a broad swathe of viruses. These viral imprints have upended long-held notions of the age and mutation rate of viruses. While 'direct' paleovirology relies on the insertion of viral genes in animal genomes, examination of adaptive changes in host genes that occurred in response to paleoviral infections provides a complementary strategy for making ‘indirect’ paleovirological inferences. Finally, viruses have also impacted host biology by providing genes hosts have domesticated for their own purpose.
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