期刊
SCIENTIFIC REPORTS
卷 11, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41598-021-94258-6
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资金
- Agence Universitaire de la Francophonie (AUF)
- Institut de Recherche pour le Developpement (IRD)
- Centre International de Recherches Medicales de Franceville (CIRMF)
- AUF scholarship
- CIRMF scholarship
The study found that Anopheles coluzzii exhibits ecological plasticity to breed in diverse aquatic conditions, with a predominance in breeding sites rich in ions. Additionally, gene expression patterns were comparable between urban and rural habitats, indicating a broad response to ions concentrations of various origins. This suggests that Anopheles coluzzii has a plastic response to occupy both coastal and urban habitats, which has important implications for malaria control efforts amidst rapid urban expansion in Africa in the near future.
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.
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