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A genetic-algorithm approach to simulating human immunodeficiency virus evolution reveals the strong impact of multiply infected cells and recombination

Bocharov, Gennady
; 
Ford, Neville J.
; 
Edwards, John T.
; 
Breinig, Tanja
; 
Wain-Hobson, Simon
; 
Meyerhans, Andreas
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Affiliation
Russian Academy of Sciences; University of Chester; University of the Saarland; Unité de Rétrovirologie Moléculaire, Institut Pasteur
EPub Date
Publication Date
2005-11-01
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Mathematics
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Abstract
It has been previously shown that the majority of human immunodeficiency virus type 1 (HIV-1)-infected splenocytes can harbour multiple, divergent proviruses with a copy number ranging from one to eight. This implies that, besides point mutations, recombination should be considered as an important mechanism in the evolution of HIV within an infected host. To explore in detail the possible contributions of multi-infection and recombination to HIV evolution, the effects of major microscopic parameters of HIV replication (i.e. the point-mutation rate, the crossover number, the recombination rate and the provirus copy number) on macroscopic characteristics (such as the Hamming distance and the abundance of n-point mutants) have been simulated in silico. Simulations predict that multiple provirus copies per infected cell and recombination act in synergy to speed up the development of sequence diversity. Point mutations can be fixed for some time without fitness selection. The time needed for the selection of multiple mutations with increased fitness is highly variable, supporting the view that stochastic processes may contribute substantially to the kinetics of HIV variation in vivo.
Citation
Bocharov, G., Ford, N. J., Edwards, J. T., Breinig, T., Wain-Hobson, S., & Meyerhans, A. (2005). A genetic-algorithm approach to simulating human immunodeficiency virus evolution reveals the strong impact of multiply infected cells and recombination. Journal of General Virology, 86(11), 3109-3118. https://doi.org/10.1099/vir.0.81138-0
Publisher
Microbiology Society
Journal
Journal of General Virology
Research Unit
URI
http://hdl.handle.net/10034/67761
DOI
10.1099/vir.0.81138-0
PubMed ID
PubMed Central ID
Type
Article
Language
en
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ISSN
0022-1317
EISSN
1465-2099
ISBN
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This article was submitted to the RAE2008 for the University of Chester - Allied Health Professions and Studies.
Additional Links
https://www.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.81138-0