杆状病毒与其昆虫宿主的古老协同进化。
Ancient coevolution of baculoviruses and their insect hosts.
作者信息
Herniou Elisabeth A, Olszewski Julie A, O'Reilly David R, Cory Jenny S
机构信息
Department of Biological Sciences, Imperial College London, Sir Alexander Fleming Building, London SW7 2AZ, United Kingdom.
出版信息
J Virol. 2004 Apr;78(7):3244-51. doi: 10.1128/jvi.78.7.3244-3251.2004.
If the relationships between baculoviruses and their insect hosts are subject to coevolution, this should lead to long-term evolutionary effects such as the specialization of these pathogens for their hosts. To test this hypothesis, a phylogeny of the Baculoviridae, including 39 viruses from hosts of the orders Lepidoptera, Diptera, and Hymenoptera, was reconstructed based on sequences from the genes lef-8 and ac22. The tree showed a clear division of the baculoviruses according to the order of their hosts. This division highlighted the need to reconsider the classification of the baculoviruses to include one or possibly two new genera. Furthermore, the specialization of distinct virus lineages to particular insect orders suggests ancient coevolutionary interactions between baculoviruses and their hosts.
如果杆状病毒与其昆虫宿主之间的关系受到协同进化的影响，那么这应该会导致长期的进化效应，例如这些病原体对其宿主的特化。为了验证这一假设，基于lef-8和ac22基因的序列，重建了杆状病毒科的系统发育树，其中包括来自鳞翅目、双翅目和膜翅目宿主的39种病毒。该树显示杆状病毒根据其宿主的目进行了明显的划分。这种划分凸显了重新考虑杆状病毒分类以纳入一个或可能两个新属的必要性。此外，不同病毒谱系对特定昆虫目的特化表明杆状病毒与其宿主之间存在古老的协同进化相互作用。
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