Geographic population structure of the African malaria vector Anopheles gambiae suggests a role for the forest-savannah biome transition as a barrier to gene flow

2013

Article référencé dans le Web of Science WOS:000330178000004

Pinto J., Egyir-Yawson A., Vicente J. L., Gomes B., Santolamazza F., Moreno M., Charlwood J. D., Simard Frédéric, Elissa N., Weetman D., Donnelly M. J., Caccone A., della Torre A.

Evolutionary Applications, 2013, 6 (6), p. 910-924 ISSN 1752-4571

The primary Afrotropical malaria mosquito vector Anopheles gambiae sensu stricto has a complex population structure. In west Africa, this species is split into two molecular forms and displays local and regional variation in chromosomal arrangements and behaviors. To investigate patterns of macrogeographic population substructure, 25 An. gambiae samples from 12 African countries were genotyped at 13 microsatellite loci. This analysis detected the presence of additional population structuring, with the M-form being subdivided into distinct west, central, and southern African genetic clusters. These clusters are coincident with the central African rainforest belt and northern and southern savannah biomes, which suggests restrictions to gene flow associated with the transition between these biomes. By contrast, geographically patterned population substructure appears much weaker within the S-form.

Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Entomologie médicale / Parasitologie / Virologie [052] ; Etudes, transformation, conservation du milieu naturel [082]

GAMBIE ; GUINEE BISSAU ; BURKINA FASO ; GHANA ; BENIN ; NIGERIA ; CAMEROUN ; CENTRAFRIQUE ; GUINEE EQUATORIALE ; GABON ; ANGOLA ; MOZAMBIQUE

Fonds IRD [F B010061498]

fdi:010061498