Virus Genes

, 40:60

Comparative analysis of American Dengue virus type 1 full-genome sequences

  • S. E. S. Carvalho
  • D. P. Martin
  • L. M. Oliveira
  • B. M. Ribeiro
  • T. Nagata
Article

DOI: 10.1007/s11262-009-0428-0

Cite this article as:
Carvalho, S.E.S., Martin, D.P., Oliveira, L.M. et al. Virus Genes (2010) 40: 60. doi:10.1007/s11262-009-0428-0

Abstract

Dengue virus (DENV; Genus Flavivirus, Family Flaviviridae) has been circulating in Brazil since at least the mid-1980s and continues to be responsible for sporadic cases of Dengue fever and Dengue hemorrhagic fever throughout this country. Here, we describe the full genomes of two new Brazilian DENV-serotype 1 (DENV-1) variants and analyze these together with all other available American DENV-1 full-genome sequences. Besides confirming the existence of various country-specific DENV-1 founder effects that have produced a high degree of geographical structure in the American DENV-1 population, we also identify that one of the new viruses is one of only three detectable intra-American DENV-1 recombinants. Although such obvious evidence of genetic exchange among epidemiologically unlinked Latin American DENV-1 sequences is relatively rare, we find that at the population-scale there exists substantial evidence of pervasive recombination that most likely occurs between viruses that are so genetically similar that it is not possible to reliably distinguish and characterize individual recombination events.

Keywords

Molecular epidemiologyDengue feverArbovirusGeographic distributionVirus recombination

Supplementary material

11262_2009_428_MOESM1_ESM.doc (32 kb)
Supplementary material 1 (DOC 33 kb)

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • S. E. S. Carvalho
    • 1
  • D. P. Martin
    • 2
  • L. M. Oliveira
    • 3
  • B. M. Ribeiro
    • 1
  • T. Nagata
    • 1
    • 3
  1. 1.Program of Molecular Pathology and Department of Cell Biology, Electron Microscopy and Virology LaboratoryUniversidade de Brasília BrasíliaBrasil
  2. 2.Institute of Infectious Disease and Molecular MedicineUniversity of Cape Town, ObservatoryCape TownSouth Africa
  3. 3.Program of Genomic Science and BiotechnologyUniversidade Católica de Brasília BrasíliaBrasil