Journal
SCIENCE
Volume 367, Issue 6482, Pages 1112-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaw7182
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Funding
- ICM Big Brain Theory Program
- program Investissements d'avenir [ANR-10-IAIHU-06]
- ANR [ANR-19-CE16-0009-01]
- Einstein-BIH program
- Paul G. Allen Frontiers Group
- VIB
- WiBrain Interuniversity Attraction Pole network (Belspo)
- FLiACT Marie-Curie Initial Training Network (FP7/2007-2013)
- NIH [R01EY018884]
- German Research Foundation [DFG: SFB 958, SFB186]
- FU Berlin
- EMBO Long Term Postdoctoral Fellowships
- VIB Omics postdoctoral fellowship
- Marie Sklodowska Curie Actions postdoctoral fellowship in FP7
- Marie Sklodowska Curie Actions postdoctoral fellowship in Horizon 2020
- Agence Nationale de la Recherche (ANR) [ANR-19-CE16-0009] Funding Source: Agence Nationale de la Recherche (ANR)
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The genome versus experience dichotomy has dominated understanding of behavioral individuality. By contrast, the role of nonheritable noise during brain development in behavioral variation is understudied. Using Drosophila melanogaster, we demonstrate a link between stochastic variation in brain wiring and behavioral individuality. A visual system circuit called the dorsal cluster neurons (DCN) shows nonheritable, interindividual variation in right/left wiring asymmetry and controls object orientation in freely walking flies. We show that DCN wiring asymmetry instructs an individual's object responses: The greater the asymmetry, the better the individual orients toward a visual object. Silencing DCNs abolishes correlations between anatomy and behavior, whereas inducing DCN asymmetry suffices to improve object responses.
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