title: Partial molecular characterization of two simian immunodeficiency viruses (SIV) from African colobids: SIVwrc from Western red colobus (Piliocolobus badius) and SIVolc from olive colobus (Procolobus verus).
abstract: In order to study primate lentivirus evolution in the Colobinae subfamily, in which only one simian immunodeficiency virus (SIV) has been described to date, we screened additional species from the three different genera of African colobus monkeys for SIV infection. Blood was obtained from 13 West African colobids, and HIV cross-reactive antibodies were observed in 5 of 10 Piliocolobus badius, 1 of 2 Procolobus verus, and 0 of 1 Colobus polykomos specimens. Phylogenetic analyses of partial pol sequences revealed that the new SIVs were more closely related to each other than to the other SIVs and especially did not cluster with the previously described SIVcol from Colobus guereza. This study presents evidence that the three genera of African colobus monkeys are naturally infected with an SIV and indicates also that there was no coevolution between virus and hosts at the level of the Colobinae subfamily.
authors.affiliation: Laboratoire Retrovirus UR 036, IRD, Montpellier, France.
authors.forename: Valerie
authors.initials: V
authors.lastname: Courgnaud
authors.forename: Pierre
authors.initials: P
authors.lastname: Formenty
authors.forename: Chantal
authors.initials: C
authors.lastname: Akoua-Koffi
authors.forename: Ronald
authors.initials: R
authors.lastname: Noe
authors.forename: Christophe
authors.initials: C
authors.lastname: Boesch
authors.forename: Eric
authors.initials: E
authors.lastname: Delaporte
authors.forename: Martine
authors.initials: M
authors.lastname: Peeters
mesh_terms: D000818:Animals; D001483:Base Sequence; D003104:Colobus / Q000821:virology*; D003429:Cross Reactions; D015497:HIV-1 / Q000276:immunology; D015498:HIV-2 / Q000276:immunology; D008969:Molecular Sequence Data; D010802:Phylogeny; D015302:Simian Immunodeficiency Virus / Q000145:classification* / Q000235:genetics / Q000276:immunology