Krupovic Mart, Quemin Emmanuelle R J, Bamford Dennis H, Forterre Patrick, Prangishvili David
Institut Pasteur, Unité Biologie Moléculaire du Gène chez les Extrêmophiles, Département de Microbiologie, Paris, France.
J Virol. 2014 Feb;88(4):2354-8. doi: 10.1128/JVI.02941-13. Epub 2013 Dec 11.
Viruses with spindle-shaped virions are abundant in diverse environments. Over the years, such viruses have been isolated from a wide range of archaeal hosts. Evolutionary relationships between them remained enigmatic, however. Here, using structural proteins as markers, we define familial ties among these "dark horses" of the virosphere and segregate all spindle-shaped viruses into two distinct evolutionary lineages, corresponding to Bicaudaviridae and Fuselloviridae. Our results illuminate the utility of structure-based virus classification and bring additional order to the virosphere.
具有纺锤形病毒粒子的病毒在多种环境中大量存在。多年来,此类病毒已从广泛的古菌宿主中分离出来。然而,它们之间的进化关系一直成谜。在这里,我们以结构蛋白为标记,确定了病毒圈中这些“黑马”之间的家族关系,并将所有纺锤形病毒分为两个不同的进化谱系,分别对应于双尾病毒科和梭形病毒科。我们的研究结果阐明了基于结构的病毒分类的实用性,并为病毒圈带来了更多的秩序。