Publications des scientifiques de l'IRD

Longo-Pendy N. M., Tene-Fossog B., Tawedi R. E., Akone-Ella O., Toty Céline, Rahola Nil, Braun Jean-Jacques, Berthet N., Kengne Pierre, Costantini Carlo, Ayala Diego. (2021). Ecological plasticity to ions concentration determines genetic response and dominance of Anopheles coluzzii larvae in urban coastal habitats of Central Africa. Scientific Reports - Nature, 11 (1), 15781 [13 p.]. ISSN 2045-2322.

Titre du document
Ecological plasticity to ions concentration determines genetic response and dominance of Anopheles coluzzii larvae in urban coastal habitats of Central Africa
Année de publication
2021
Type de document
Article référencé dans le Web of Science WOS:000684831300013
Auteurs
Longo-Pendy N. M., Tene-Fossog B., Tawedi R. E., Akone-Ella O., Toty Céline, Rahola Nil, Braun Jean-Jacques, Berthet N., Kengne Pierre, Costantini Carlo, Ayala Diego
Source
Scientific Reports - Nature, 2021, 11 (1), 15781 [13 p.] ISSN 2045-2322
In Central Africa, the malaria vector Anopheles coluzzii is predominant in urban and coastal habitats. However, little is known about the environmental factors that may be involved in this process. Here, we performed an analysis of 28 physicochemical characteristics of 59 breeding sites across 5 urban and rural sites in coastal areas of Central Africa. We then modelled the relative frequency of An. coluzzii larvae to these physicochemical parameters in order to investigate environmental patterns. Then, we assessed the expression variation of 10 candidate genes in An. coluzzii, previously incriminated with insecticide resistance and osmoregulation in urban settings. Our results confirmed the ecological plasticity of An. coluzzii larvae to breed in a large range of aquatic conditions and its predominance in breeding sites rich in ions. Gene expression patterns were comparable between urban and rural habitats, suggesting a broad response to ions concentrations of whatever origin. Altogether, An. coluzzii exhibits a plastic response to occupy both coastal and urban habitats. This entails important consequences for malaria control in the context of the rapid urban expansion in Africa in the coming years.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052] ; Urbanisation et sociétés urbaines [102]
Description Géographique
CAMEROUN ; GABON
Localisation
Fonds IRD [F B010082712]
Identifiant IRD
fdi:010082712
Contact