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首页> 外文期刊>Acta microbiologica et immunologica Hungarica: A quarterly of the Hungarian Academy of Sciences >The place of viruses in the 'tree of life'.
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The place of viruses in the 'tree of life'.

机译：病毒在“生命之树”中的位置。

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摘要

Ribozymal entry into vesicle containing autocatalytically replicating oligopeptides engendered RNA proliferation and enzyme synthesis within units whose RNA genomes derived from ancestors of viroids. There is good reason to consider the coexistence of proto- or spheroplastic forms of ancient prokaryotes and archaeons. Predecessors of extant mycoplasmavirus L3 or archaeal fuselloviruses could induce cell fusions among these entities. The possibility that the first eukaryotic cells arose consequentially to virally mediated fusions of prokaryotic and archaeal proto- or spheroplasts is presented. Retrotransposons and endogenous retroviruses might have emerged in theropod dinosaurs when Aves evolved; and directed the development of syncytiotrophoblasts in the placentae of the first mammals. As viruses coevolved with their hosts descendants of ancient viruses diverged from one another. Certain phenotypical features could connect extant phages and eukaryotic viruses to common ancestors.
机译：核糖酶进入含有自催化复制的寡肽的囊泡，在其RNA基因组来源于类病毒祖先的单位内引起RNA增殖和酶合成。有充分的理由考虑古代原核生物和古细菌的原形或球形塑性形式的共存。现存的支原体病毒L3或古细菌融合病毒的前身可以诱导这些实体之间的细胞融合。提出了最初的真核细胞在病毒介导的原核和古细菌原生质或原生质球融合物中产生的可能性。当Aves进化时，兽脚类恐龙中可能已经出现了逆转座子和内源性逆转录病毒。并指导了第一批哺乳动物胎盘中合体滋养层细胞的发育。随着病毒与其宿主共同进化，古代病毒的后代彼此分歧。某些表型特征可以将现存的噬菌体和真核病毒与共同祖先联系起来。

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