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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/16074

Title: C. elegans collectively forms dynamical networks
Authors: Sugi, Takuma
Ito, Hiroshi
Nishimura, Masaki
Nagai, Ken H.
Keywords: Active matter
Collective motion
C. elegans
Issue Date: 2019-02-18
Publisher: Nature
Magazine name: Nature Communications
Volume: 10
Start page: Article number: 683
DOI: 10.1038/s41467-019-08537-y
Abstract: Understanding physical rules underlying collective motions requires perturbation of controllable parameters in self-propelled particles. However, controlling parameters in animals is generally not easy, which makes collective behaviours of animals elusive. Here, we report an experimental system in which a conventional model animal, Caenorhabditis elegans, collectively forms dynamical networks of bundle-shaped aggregates. We investigate the dependence of our experimental system on various extrinsic parameters (material of substrate, ambient humidity and density of worms). Taking advantage of well-established C. elegans genetics, we also control intrinsic parameters (genetically determined motility) by mutations and by forced neural activation via optogenetics. Furthermore, we develop a minimal agent-based model that reproduces the dynamical network formation and its dependence on the parameters, suggesting that the key factors are alignment of worms after collision and smooth turning. Our findings imply that the concepts of active matter physics may help us to understand biological functions of animal groups.
Rights: Takuma Sugi, Hiroshi Ito, Masaki Nishimura, and Ken H. Nagai, Nature Communications volume 10, Article number: 683 (2019). DOI:10.1038/s41467-019-08537-y. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
URI: http://hdl.handle.net/10119/16074
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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