Intra- and inter-serotypic recombinations in the 5΄ UTR-VP4 region of Echovirus 30 strains

Autor: Dimitris Mossialos, D. Tsakogiannis, Panayotis Markoulatos, Z. Kyriakopoulou, Grigoris D. Amoutzias, T.G. Dimitriou
Rok vydání: 2017
Předmět:
Zdroj: Archives of Virology. 163:365-375
ISSN: 1432-8798
0304-8608
DOI: 10.1007/s00705-017-3600-1
Popis: Recombination has been recognized as a major mechanism of evolution in enteroviruses. The Echovirus 30 (E-30) strain Gior was sequenced and phylogenetically compared to all available E-30 sequences to detect recombination events between the 5΄UTR and VP1 genomic regions. The comparison of phylogenetic trees of the 5΄UTR and VP1 revealed incongruences concerning strains, lineages and sub-lineages. Comparative analysis of 62 E-30 sub-genomic sequences revealed six different recombination events that almost all occurred in the same region, having a start point in the 3΄end of the 5΄ UTR and end point in VP4. The only exception was the sub-lineage of Gior for which both borders of recombination were located in the 5΄UTR. These results describe for the first time recombination events in this region in circulating EV-B strains, revealing the exact points of these recombination events, highlighting the impact of such events on the evolution and epidemiology of enteroviruses.
Databáze: OpenAIRE