This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the manuscript and its Supporting Information files.įunding: This work was supported by grants from the United States Department of Defense to C.J.P. Received: FebruAccepted: ApPublished: May 14, 2021Ĭopyright: © 2021 Raji, Potter. PLoS ONE 16(5):Įditor: Matthieu Louis, University of California Santa Barbara, UNITED STATES Our study provides experimental evidence for the total number of neurons in Drosophila and mosquito brains.Ĭitation: Raji JI, Potter CJ (2021) The number of neurons in Drosophila and mosquito brains. Isotropic fractionation analyses did not identify obvious sexual dimorphism in the neuronal and non-neuronal cell population of these insects. Each insect brain was comprised of 89% ± 2% neurons out of its total cell population. The mean neuronal cell count in the central brain vs. The average number of neurons in a whole adult brain was determined to be 199,380 ☓,400 cells in D. For comparison, we also counted neuronal populations in three divergent mosquito species: Aedes aegypti, Anopheles coluzzii and Culex quinquefasciatus. Using isotropic fractionator coupled with immunohistochemistry, we counted the total number of neuronal and non-neuronal cells in the whole brain, central brain, and optic lobe of Drosophila melanogaster.
In particular, the nervous system of Drosophila melanogaster has been extensively studied, yet experiments aimed at determining the number of neurons in the Drosophila brain are surprisingly lacking. Various insect species serve as valuable model systems for investigating the cellular and molecular mechanisms by which a brain controls sophisticated behaviors.
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