Genetic Loci Affecting Resistance to Human Malaria Parasites in a West African Mosquito Vector Population

Author:

Niaré Oumou12,Markianos Kyriacos3,Volz Jennifer4,Oduol Frederick1,Touré Abdoulaye2,Bagayoko Magaran2,Sangaré Djibril2,Traoré Sekou F.2,Wang Rui4,Blass Claudia4,Dolo Guimogo2,Bouaré Madama2,Kafatos Fotis C.4,Kruglyak Leonid35,Touré Yeya T.2,Vernick Kenneth D.1

Affiliation:

1. Department of Medical and Molecular Parasitology, New York University School of Medicine, 341 East 25th Street, New York, NY 10010, USA.

2. Département d'Epidémiologie des Affectations Parasitaires, Faculté de Médecine, de Pharmacie et d'Odonto-Stomatologie, Boite Postale 1805, Bamako, Mali.

3. Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA.

4. European Molecular Biology Laboratories, Meyerhofstrasse 1, 69117 Heidelberg, Germany.

5. Howard Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, MD 20815, USA.

Abstract

Successful propagation of the malaria parasite Plasmodium falciparum within a susceptible mosquito vector is a prerequisite for the transmission of malaria. A field-based genetic analysis of the major human malaria vector, Anopheles gambiae , has revealed natural factors that reduce the transmission of P. falciparum . Differences in P. falciparum oocyst numbers between mosquito isofemale families fed on the same infected blood indicated a large genetic component affecting resistance to the parasite, and genome-wide scanning in pedigrees of wild mosquitoes detected segregating resistance alleles. The apparently high natural frequency of resistance alleles suggests that malaria parasites (or a similar pathogen) exert a significant selective pressure on vector populations.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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