Dec 1, 2017

Genetic diversity of the African malaria vector Anopheles gambiae

Nature
Anopheles gambiae 1000 Genomes ConsortiumProject coordination

Abstract

The sustainability of malaria control in Africa is threatened by the rise of insecticide resistance in Anopheles mosquitoes, which transmit the disease. To gain a deeper understanding of how mosquito populations are evolving, here we sequenced the genomes of 765 specimens of Anopheles gambiae and Anopheles coluzzii sampled from 15 locations across Africa, and identified over 50 million single nucleotide polymorphisms within the accessible genome. These data revealed complex population structure and patterns of gene flow, with evidence of ancient expansions, recent bottlenecks, and local variation in effective population size. Strong signals of recent selection were observed in insecticide-resistance genes, with several sweeps spreading over large geographical distances and between species. The design of new tools for mosquito control using gene-drive systems will need to take account of high levels of genetic diversity in natural mosquito populations.

Mentioned in this Paper

Size
Patterns
Mosquito Vectors
Gene Drive Systems
Genome
Genes
Insecticide Resistance Function
Malaria
X Chromosome
Malaria Vaccines

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