From birdsong to love songs, sound can play an important role in any romance. In some species removing that ingredient can even stop a relationship in its tracks, according to researchers investigating the impact of deafness in mating of disease-carrying mosquitoes. A study examined neurons (brain cells) that express a particular gene essential for hearing in the dengue- and zika-transmitting Aedes aegypti mosquito. The neurons (shown in green) protrude into the brain's auditory centre (pictured), and help transmit sound-induced movement from the antenna. When the gene was silenced, rendering the mosquitoes deaf, males were unable to mate at all, failing to modulate their patterns of wingbeats in sync with females as they normally would during mating. Hearing is therefore not just important, but essential, to mosquito reproduction, which could present a new route to population management and attempts to slow the spread of deadly diseases.
Image from work by Yijin Wang, Dhananjay Thakur and Emma Duge, and colleagues
Department of Molecular, Cellular, and Developmental Biology, and the Neuroscience Research Institute, University of California, Santa Barbara, CA, USA
Image originally published with a Creative Commons Attribution 4.0 International (CC BY-NC 4.0)
Published in Proceedings of the National Academy of Science (PNAS), November 2024
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