Abecasis A. B., Lemey P., Vidal Nicole, de Oliveira T., Peeters Martine, Camacho R., Shapiro B., Rambaut A., Vandamme A. M. (2007). Recombination confounds the early evolutionary history of human immunodeficiency virus type 1 : Subtype G is a circulating recombinant form. Journal of Virology, 81 (16), p. 8543-8551. ISSN 0022-538X.
Titre du document
Recombination confounds the early evolutionary history of human immunodeficiency virus type 1 : Subtype G is a circulating recombinant form
Année de publication
2007
Auteurs
Abecasis A. B., Lemey P., Vidal Nicole, de Oliveira T., Peeters Martine, Camacho R., Shapiro B., Rambaut A., Vandamme A. M.
Source
Journal of Virology, 2007,
81 (16), p. 8543-8551 ISSN 0022-538X
Human immunodeficiency virus type I (HIV-1) is classified in nine subtypes (A to D, F, G, H, J, and K), a number of subsubtypes, and several circulating recombinant forms (CRFs). Due to the high level of genetic diversity within HIV-1 and to its worldwide distribution, this classification system is widely used in fields as diverse as vaccine development, evolution, epidemiology, viral fitness, and drug resistance. Here, we demonstrate how the high recombination rates of HIV-1 may confound the study of its evolutionary history and classification. Our data show that subtype G, currently classified as a pure subtype, has in fact a recombinant history, having evolved following recombination between subtypes A and J and a putative subtype G parent. In addition, we find no evidence for recombination within one of the lineages currently classified as a CRF, CRF02 -AG. Our analysis indicates that CRF02_AG was the parent of the recombinant subtype G, rather than the two having the opposite evolutionary relationship, as is currently proposed. Our results imply that the current classification of HIV-1 subtypes and CRFs is an artifact of sampling history, rather than reflecting the evolutionary history of the virus. We suggest a reanalysis of all pure subtypes and CRFs in order to better understand how high rates of recombination have influenced HIV-1 evolutionary history.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Localisation
Fonds IRD [F B010041218]
Identifiant IRD
fdi:010041218
