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The spread of Wolbachia through mosquito populations
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The spread of Wolbachia through mosquito populations
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Journal Article
The spread of Wolbachia through mosquito populations
2017
Overview
In many regions of the world, mosquito-borne viruses pose a growing threat to human health. As an alternative to traditional control measures, the bacterial symbiont Wolbachia has been transferred from Drosophila into the mosquito Aedes aegypti, where it can block the transmission of dengue and Zika viruses. A recent paper has reported large-scale releases of Wolbachia-infected Ae. aegypti in the city of Cairns, Australia. Wolbachia, which is maternally transmitted, invaded and spread through the populations due to a sperm-egg incompatibility called cytoplasmic incompatibility. Over a period of 2 years, a wave of Wolbachia infection slowly spread out from 2 release sites, demonstrating that it will be possible to deploy this strategy in large urban areas. In line with theoretical predictions, Wolbachia infection at a third, smaller release site collapsed due to the immigration of Wolbachia-free mosquitoes from surrounding areas. This remarkable field experiment has both validated theoretical models of Wolbachia population dynamics and demonstrated that this is a viable strategy to modify mosquito populations.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Animals
/ Bacteria
/ Biological Control Agents - adverse effects
/ Biological Control Agents - immunology
/ Biological Control Agents - isolation & purification
/ Dengue
/ Dengue - prevention & control
/ Drosophila simulans - growth & development
/ Drosophila simulans - immunology
/ Drosophila simulans - microbiology
/ Female
/ Humans
/ Male
/ Medicine and Health Sciences
/ Mosquito Vectors - immunology
/ Mosquito Vectors - microbiology
/ Primer
/ Research and Analysis Methods
/ Rickettsiaceae Infections - immunology
/ Rickettsiaceae Infections - microbiology
/ Rickettsiaceae Infections - transmission
/ Strategy
/ Viruses
/ Wolbachia - growth & development
/ Wolbachia - isolation & purification
