A monkey's tale: The origin of Plasmodium vivax as a human malaria parasite

Ananias A. Escalante, Omar E. Cornejo, Denise E. Freeland, Amanda C. Poe, Ester Durrego, William E. Collins, Alta A. Lal

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149 Scopus citations

Abstract

The high prevalence of Duffy negativity (lack of the Duffy blood group antigen) among human populations in sub-Saharan Africa has been used to argue that Plasmodium vivax originated on that continent. Here, we investigate the phylogenetic relationships among 10 species of Plasmodium that infect primates by using three genes, two nuclear (β-tubulin and cell division cycle 2) and a gene from the plastid genome (the elongation factor Tu). We find compelling evidence that P. vivax is derived from a species that inhabited macaques in Southeast Asia. Specifically, those phylogenies that include P. vivax as an ancient lineage from which all of the macaque parasites could originate are significantly less likely to explain the data. We estimate the time to the most recent common ancestor at four neutral gene loci from Asian and South American isolates (a minimum sample of seven isolates per locus). Our analysis estimates that the extant populations of P. vivax originated between 45,680 and 81,607 years ago. The phylogeny and the estimated time frame for the origination of current P. vivax populations are consistent with an "out of Asia" origin for P. vivax as hominoid parasite. The current debate regarding how the Duffy negative trait became fixed in Africa needs to be revisited, taking into account not only human genetic data but also the genetic diversity observed in the extant P. vivax populations and the phylogeny of the genus Plasmodium.

Original languageEnglish (US)
Pages (from-to)1980-1985
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume102
Issue number6
DOIs
StatePublished - Feb 8 2005

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Keywords

  • Duffy
  • Genetic diversity
  • Host-switch

ASJC Scopus subject areas

  • General

Cite this

Escalante, A. A., Cornejo, O. E., Freeland, D. E., Poe, A. C., Durrego, E., Collins, W. E., & Lal, A. A. (2005). A monkey's tale: The origin of Plasmodium vivax as a human malaria parasite. Proceedings of the National Academy of Sciences of the United States of America, 102(6), 1980-1985. https://doi.org/10.1073/pnas.0409652102