Computational Biology Group, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
Arch Virol. 2011 Aug;156(8):1463-9. doi: 10.1007/s00705-011-0994-z. Epub 2011 Apr 12.
Recombination has profoundly shaped the evolution of viruses in the family Geminiviridae and has been studied extensively in the two best characterised geminivirus lineages: the dicotyledonous plant infecting begomoviruses and the monocotyledonous plant infecting mastreviruses. Here, we demonstrate that the sizes and distributions of recombination events detectable within the members of a third major geminivirus lineage--the dicotyledonous plant infecting mastreviruses--are very similar to those of the monocot-infecting mastreviruses. This suggests that, despite host range differences, very similar biochemical, ecological and evolutionary factors must underlie recombination patterns in the dicot- and monocot-infecting mastreviruses.
重组深刻地影响了双生病毒科病毒的进化，并在两个研究得最为透彻的双生病毒谱系中得到了广泛研究：双子叶植物侵染的番茄黄曲叶病毒和单子叶植物侵染的玉米线条病毒。在这里，我们证明了在第三个主要的双生病毒谱系——双子叶植物侵染的玉米线条病毒成员中可检测到的重组事件的大小和分布与单子叶植物侵染的玉米线条病毒非常相似。这表明，尽管宿主范围不同，但在双子叶植物和单子叶植物侵染的玉米线条病毒中，重组模式必然受到非常相似的生化、生态和进化因素的影响。
