Researchers Create New CRISPR Tools to Help Contain Mosquito Disease Transmission
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M. Aguilera,
UC San Diego News Center,
2021.
Much less genetic engineering has been devoted to Culex genus mosquitoes, which spread devastating afflictions stemming from West Nile virus—the leading cause of mosquito-borne disease in the continental United States—as well as other viruses such as the Japanese encephalitis virus (JEV) and the pathogen causing avian malaria, a threat to Hawaiian birds.University of California San Diego scientists have now developed several genetic editing tools that help pave the way to an eventual gene drive designed to stop Culex mosquitoes from spreading disease. Gene drives are designed to spread modified genes, in this case those that disable the ability to transmit pathogens, throughout the targeted wild population.As detailed in the journal Nature Communications, Xuechun Feng, Valentino Gantz and their colleagues at Harvard Medical School and National Emerging Infectious Diseases Laboratories developed a Cas9/guide-RNA expression “toolkit” designed for Culex mosquitoes. Since such little attention in genetic engineering has been devoted to Culex mosquitoes, the researchers were required to develop their toolkit from scratch, starting with a careful examination of the Culex genome. More related to this: New genetically modified mosquitoes to help fight malaria New CRISPR Tools Can Help Contain Mosquito Disease Transmission Sex ratio distortion caused by meiotic drive in a mosquito Culex pipiens
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