Navigational strategies underlying temporal phototaxis in Drosophila larvae

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Date
2021
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Zhu, Maxwell L.
Herrera, Kristian J.
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10.1242/jeb.242428
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Biologie
Exzellenzcluster "Centre for the Advanced Study of Collective Behaviour"
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The Journal of Experimental Biology ; 224 (2021), 11. - jeb242428. - Company of Biologists. - ISSN 0022-0949. - eISSN 1477-9145
Abstract
Navigating across light gradients is essential for survival for many animals. However, we still have a poor understanding of the algorithms that underlie such behaviors. Here, we developed a novel closed-loop phototaxis assay for Drosophila larvae in which light intensity is always spatially uniform but updates depending on the location of the animal in the arena. Even though larvae can only rely on temporal cues during runs, we find that they are capable of finding preferred areas of low light intensity. Further detailed analysis of their behavior reveals that larvae turn more frequently and that heading angle changes increase when they experience brightness increments over extended periods of time. We suggest that temporal integration of brightness change during runs is an important – and so far largely unexplored – element of phototaxis.
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570 Biosciences, Biology
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Drosophila melanogaster larvae, Animal behavior, Posture tracking, Navigation, Decision making, Modeling
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ISO 690ZHU, Maxwell L., Kristian J. HERRERA, Katrin VOGT, Armin BAHL, 2021. Navigational strategies underlying temporal phototaxis in Drosophila larvae. In: The Journal of Experimental Biology. Company of Biologists. 224(11), jeb242428. ISSN 0022-0949. eISSN 1477-9145. Available under: doi: 10.1242/jeb.242428
BibTex
@article{Zhu2021-06-01Navig-54224,
  year={2021},
  doi={10.1242/jeb.242428},
  title={Navigational strategies underlying temporal phototaxis in Drosophila larvae},
  number={11},
  volume={224},
  issn={0022-0949},
  journal={The  Journal of Experimental Biology},
  author={Zhu, Maxwell L. and Herrera, Kristian J. and Vogt, Katrin and Bahl, Armin},
  note={Article Number: jeb242428}
}
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