Publications des scientifiques de l'IRD

Ayala Diego, Acevedo P., Pombi M., Dia I., Boccolini D., Costantini Carlo, Simard Frédéric, Fontenille Didier. (2017). Chromosome inversions and ecological plasticity in the main African malaria mosquitoes. Evolution, 71 (3), p. 686-701. ISSN 0014-3820.

Titre du document
Chromosome inversions and ecological plasticity in the main African malaria mosquitoes
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000396039000013
Auteurs
Ayala Diego, Acevedo P., Pombi M., Dia I., Boccolini D., Costantini Carlo, Simard Frédéric, Fontenille Didier
Source
Evolution, 2017, 71 (3), p. 686-701 ISSN 0014-3820
Chromosome inversions have fascinated the scientific community, mainly because of their role in the rapid adaption of different taxa to changing environments. However, the ecological traits linked to chromosome inversions have been poorly studied. Here, we investigated the roles played by 23 chromosome inversions in the adaptation of the four major African malaria mosquitoes to local environments in Africa. We studied their distribution patterns by using spatially explicit modeling and characterized the ecogeographical determinants of each inversion range. We then performed hierarchical clustering and constrained ordination analyses to assess the spatial and ecological similarities among inversions. Our results show that most inversions are environmentally structured, suggesting that they are actively involved in processes of local adaptation. Some inversions exhibited similar geographical patterns and ecological requirements among the four mosquito species, providing evidence for parallel evolution. Conversely, common inversion polymorphisms between sibling species displayed divergent ecological patterns, suggesting that they might have a different adaptive role in each species. These results are in agreement with the finding that chromosomal inversions play a role in Anopheles ecotypic adaptation. This study establishes a strong ecological basis for future genome-based analyses to elucidate the genetic mechanisms of local adaptation in these four mosquitoes.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
AFRIQUE
Localisation
Fonds IRD [F B010069418]
Identifiant IRD
fdi:010069418
Contact