Recombination analysis of Maize dwarf mosaic virus (MDMV) in the Sugarcane mosaic virus (SCMV) subgroup of potyviruses

Gyöngyvér Gell, Endre Sebestyén, Ervin Balázs

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Recombination among RNA viruses is a natural phenomenon that appears to have played a significant role in the species development and the evolution of many strains. It also has particular significance for the risk assessment of plants which have been genetically modified for disease resistance by incorporating viral sequences into their genomes. However, the exact recombination events taking place in viral genomes are not investigated in detail for many virus groups. In this analysis, different single-stranded positive-sense RNA potyviruses were compared using various in silico recombination detection methods and new recombination events in the Sugarcane mosaic virus (SCMV) subgroup were detected. For an extended in silico recombination analysis, two of the analyzed Maize dwarf mosaic virus full-length genomes were sequenced additionally during this work. These results strengthen the evidence that recombination is a major driving force in virus evolution, and the emergence of new virus variants in the SCMV subgroup, paired with mutations, could generate viruses with altered biological properties. The intra- and interspecific homolog recombinations seem to be a general trait in this virus group, causing little or no changes to the amino acid of the progenies. However, we found a few breakpoints between the members of SCMV subgroup and the weed-infecting distant relatives, but only a few methods of the RDP3 package predicted these events with low significance level.

Original languageEnglish
Pages (from-to)79-86
Number of pages8
JournalVirus Genes
Volume50
Issue number1
DOIs
Publication statusPublished - 2015

Keywords

  • Maize dwarf mosaic virus
  • Phylogeny
  • Potyvirus
  • Recombination

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Virology

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