Evidence for multiple recombination events within foot-and-mouth disease viruses circulating in West Eurasia

Syed Muhammad Jamal, M Nazem Shirazi, Fuat Ozyoruk, Unal Parlak, Preben Normann, Graham Belsham*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Phylogenetic studies on foot-and-mouth disease viruses (FMDVs) circulating in the West Eurasian region have largely focused on the genomic sequences encoding the structural proteins that determine the serotype. The present study has compared near complete genome sequences of FMDVs representative of the viruses that circulate in this region. The near complete genome sequences (ca. 7600nt) were generated from multiple overlapping RT-PCR products. These amplicons were from FMDVs belonging to serotypes O, A and Asia-1, including members of the O-PanAsia-II and the A-Iran05 lineages, and of Group-II and Group-VII (Sindh-08) within serotype Asia-1, which are currently predominant and widespread in West Eurasia. These new sequences were analysed together with other sequences obtained from GenBank. Comparison of different regions of the FMDVs genomes revealed evidence for multiple, inter-serotypic, recombination events between FMDVs belonging to the serotypes O, A and Asia-1. It is concluded from the present study that dramatic changes in virus sequences can occur in the field through recombination between different FMDV genomes. These analyses provide information about the ancestry of the serotype O, A and Asia-1 FMDVs that are currently circulating within the West Eurasian region.
Original languageEnglish
JournalTransboundary and Emerging Diseases
Volume67
Issue number2
Pages (from-to)979-993
ISSN1865-1674
DOIs
Publication statusPublished - 2020

Keywords

  • FMDV
  • Mosaic genome
  • Picornaviurs
  • RNA

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