Cited by 131HIV Research and TreatmentEvolution and Genetic DynamicsHIV/AIDS Research and Interventions

The molecular population genetics of HIV-1 group O.

Lemey, Philippe, Pybus, Oliver G, Rambaut, Andrew, Drummond, Alexei J, Robertson, David L, Roques, Pierre, Worobey, Michael, Vandamme, Anne-Mieke·2004·Genetics

Abstract

HIV-1 group O originated through cross-species transmission of SIV from chimpanzees to humans and has established a relatively low prevalence in Central Africa. Here, we infer the population genetics and epidemic history of HIV-1 group O from viral gene sequence data and evaluate the effect of variable evolutionary rates and recombination on our estimates. First, model selection tools were used to specify suitable evolutionary and coalescent models for HIV group O. Second, divergence times and population genetic parameters were estimated in a Bayesian framework using Markov chain Monte Carlo sampling, under both strict and relaxed molecular clock methods. Our results date the origin of the group O radiation to around 1920 (1890–1940), a time frame similar to that estimated for HIV-1 group M. However, group O infections, which remain almost wholly restricted to Cameroon, show a slower rate of exponential growth during the twentieth century, explaining their lower current prevalence. To explore the effect of recombination, the Bayesian framework is extended to incorporate multiple unlinked loci. Although recombination can bias estimates of the time to the most recent common ancestor, this effect does not appear to be important for HIV-1 group O. In addition, we show that evolutionary rate estimates for different HIV genes accurately reflect differential selective constraints along the HIV genome.

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  • It is also straightforward to sample the rate from a parametric distribution obtained from a previous (independent) analysis.

    “It is also straightforward to sample the rate from a parametric distribution obtained from a previous (independent) analysis [ 68, 69].”

    From Relaxed Phylogenetics and Dating with Confidence (2006) · cites this paper as [68]

    The passage indexed under Abstract (page unavailable) describes a normally distributed prior for the substitution rate and MCMC sampling of model parameters. It does not say that the rate distribution came from a previous independent analysis; the prior explicitly derived from an earlier analysis was for the TMRCA, not the rate. (LLM, conf=0.78)

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Research works printed but not linked: 5

  1. 1982, J. Appl. Probab., 19A, 27
  2. 2000, AIDS Rev., 2, 190
  3. 2000, Science, 288, 55
  4. 1997, Comput. Appl. Biosci., 13, 555
  5. 1997, AIDS, 11, 1410

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Authors
Lemey, P., Pybus, O. G., Rambaut, A., Drummond, A. J., Robertson, D. L., Roques, P., Worobey, M., & Vandamme, A.-M.
Affiliations
  • Rega Institute for Medical Research (BE)
  • University of Oxford (GB)
  • University of Manchester (GB)
  • Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
  • University of Arizona (US)
Corresponding author
Lemey, Philippe
Venue
Genetics
Published
2004-07-01
Volume
167
Issue
3
Pages
1059-1068
ISSN
  • 0016-6731 (ISSN-L)
  • 1943-2631
OpenAlex
W2126531452
Cited by
131
References
59
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 3 · 2022: 4 · 2021: 2 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 3 · 2016: 5 · 2015: 6 · 2014: 8 · 2013: 6 · 2012: 11
FWCI
1.96
Type
journal article
Language
en
Open access
closed
Locations
  • Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Health Sciences › Medicine › Infectious Diseases › HIV/AIDS Research and Interventions
Keywords
HIV-1 group O, chimpanzees, epidemic history, divergence time estimation, molecular clock, relaxed molecular clock, recombination, population genetic parameters, exponential growth, selective constraint, HIV-1 group M, Cameroon
MeSH terms
Bayes Theorem, Cameroon, Genetics, Population, Humans, Models, Genetic, Phylogeny, Recombination, Genetic, Species Specificity, Viral Proteins, HIV-1, Likelihood Functions, Genome, Viral, Evolution, Molecular

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