Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/86631
Title: Masking of a circadian behavior in larval zebrafish involves the thalamo-habenula pathway
Authors: Lin, Qian
Jesuthasan, Suresh
Keywords: Animal behaviour
Neural circuits
Issue Date: 2017
Source: Lin, Q., & Jesuthasan, S. (2017). Masking of a circadian behavior in larval zebrafish involves the thalamo-habenula pathway. Scientific Reports, 7, 4104-.
Series/Report no.: Scientific Reports
Abstract: Changes in illumination can rapidly influence behavior that is normally controlled by the circadian clock. This effect is termed masking. In mice, masking requires melanopsin-expressing retinal ganglion cells that detect blue light and project to the thalamus. It is not known whether masking is wavelength-dependent in other vertebrates, nor is it known whether the thalamus is also involved or how it influences masking. Here, we address these questions in zebrafish. We find that diel vertical migration, a circadian behavior in larval zebrafish, is effectively triggered by blue, but not by red light. Two-photon calcium imaging reveals that a thalamic nucleus and a downstream structure, the habenula, have a sustained response to blue but not to red light. Lesioning the habenula reduces light-evoked climbing. These data suggest that the thalamo-habenula pathway is involved in the ability of blue light to influence a circadian behavior.
URI: https://hdl.handle.net/10356/86631
http://hdl.handle.net/10220/44153
ISSN: 2045-2322
DOI: 10.1038/s41598-017-04205-7
Rights: © 2017 The Author(s). 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/.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:LKCMedicine Journal Articles

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