Evolutionary Processes among Sylvatic Dengue Type 2 Viruses-Reference-Cited by-同舟云学术

Evolutionary Processes among Sylvatic Dengue Type 2 Viruses

Published:2007-09 Issue:17 Volume:81 Page:9591-9595
ISSN:0022-538X
Container-title:Journal of Virology
language:en
Short-container-title:J Virol

Author:

Vasilakis Nikos¹,Holmes Edward C.²³,Fokam Eric B.⁴,Faye Ousmane⁵,Diallo Mawlouth⁵,Sall Amadou A.⁵,Weaver Scott C.¹

Affiliation:

1. Center for Biodefense and Emerging Infectious Diseases and Department of Pathology, University of Texas Medical Branch, Galveston, Texas 77555-0609

2. Center for Infectious Disease Dynamics and Department of Biology, The Pennsylvania State University, University Park, Pennsylvania 16802

3. Fogarty International Center, National Institutes of Health, Bethesda, Maryland 20892

4. Department of Zoology and Botany, University of Buea, Buea, Cameroon

5. Institut Pasteur de Dakar, Dakar, Senegal

Abstract

ABSTRACT Sylvatic dengue viruses (DENV) are transmitted in an enzootic cycle between nonhuman primates and arboreal Aedes mosquitoes in Southeast Asia and West Africa. Although previous analyses have revealed the evolutionary processes among endemic (human) DENV, little is known about viral evolution in the sylvatic cycle. Through an analysis of 14 complete coding regions of sylvatic Dengue type 2 virus sampled over a 33-year period, we show that both the rate of evolutionary change and the pattern of natural selection are similar among endemic and sylvatic DENV, although the latter have a uniquely high frequency of positive selection in the NS4B protein gene. Our findings support a recent cross-species transmission event and suggest the possibility of future DENV reemergence from the sylvatic cycle.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/JVI.02776-06

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