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Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton
Ciliary and rhabdomeric photoreceptor cells represent two main lines of photoreceptor-cell evolution in animals. The two cell types coexist in some animals, however how these cells functionally integrate is unknown. We used connectomics to map synaptic paths between ciliary and rhabdomeric photorece...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6019069/ https://www.ncbi.nlm.nih.gov/pubmed/29809157 http://dx.doi.org/10.7554/eLife.36440 |
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author | Verasztó, Csaba Gühmann, Martin Jia, Huiyong Rajan, Vinoth Babu Veedin Bezares-Calderón, Luis A Piñeiro-Lopez, Cristina Randel, Nadine Shahidi, Réza Michiels, Nico K Yokoyama, Shozo Tessmar-Raible, Kristin Jékely, Gáspár |
author_facet | Verasztó, Csaba Gühmann, Martin Jia, Huiyong Rajan, Vinoth Babu Veedin Bezares-Calderón, Luis A Piñeiro-Lopez, Cristina Randel, Nadine Shahidi, Réza Michiels, Nico K Yokoyama, Shozo Tessmar-Raible, Kristin Jékely, Gáspár |
author_sort | Verasztó, Csaba |
collection | PubMed |
description | Ciliary and rhabdomeric photoreceptor cells represent two main lines of photoreceptor-cell evolution in animals. The two cell types coexist in some animals, however how these cells functionally integrate is unknown. We used connectomics to map synaptic paths between ciliary and rhabdomeric photoreceptors in the planktonic larva of the annelid Platynereis and found that ciliary photoreceptors are presynaptic to the rhabdomeric circuit. The behaviors mediated by the ciliary and rhabdomeric cells also interact hierarchically. The ciliary photoreceptors are UV-sensitive and mediate downward swimming in non-directional UV light, a behavior absent in ciliary-opsin knockout larvae. UV avoidance overrides positive phototaxis mediated by the rhabdomeric eyes such that vertical swimming direction is determined by the ratio of blue/UV light. Since this ratio increases with depth, Platynereis larvae may use it as a depth gauge during vertical migration. Our results revealed a functional integration of ciliary and rhabdomeric photoreceptor cells in a zooplankton larva. |
format | Online Article Text |
id | pubmed-6019069 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-60190692018-07-05 Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton Verasztó, Csaba Gühmann, Martin Jia, Huiyong Rajan, Vinoth Babu Veedin Bezares-Calderón, Luis A Piñeiro-Lopez, Cristina Randel, Nadine Shahidi, Réza Michiels, Nico K Yokoyama, Shozo Tessmar-Raible, Kristin Jékely, Gáspár eLife Neuroscience Ciliary and rhabdomeric photoreceptor cells represent two main lines of photoreceptor-cell evolution in animals. The two cell types coexist in some animals, however how these cells functionally integrate is unknown. We used connectomics to map synaptic paths between ciliary and rhabdomeric photoreceptors in the planktonic larva of the annelid Platynereis and found that ciliary photoreceptors are presynaptic to the rhabdomeric circuit. The behaviors mediated by the ciliary and rhabdomeric cells also interact hierarchically. The ciliary photoreceptors are UV-sensitive and mediate downward swimming in non-directional UV light, a behavior absent in ciliary-opsin knockout larvae. UV avoidance overrides positive phototaxis mediated by the rhabdomeric eyes such that vertical swimming direction is determined by the ratio of blue/UV light. Since this ratio increases with depth, Platynereis larvae may use it as a depth gauge during vertical migration. Our results revealed a functional integration of ciliary and rhabdomeric photoreceptor cells in a zooplankton larva. eLife Sciences Publications, Ltd 2018-05-29 /pmc/articles/PMC6019069/ /pubmed/29809157 http://dx.doi.org/10.7554/eLife.36440 Text en © 2018, Verasztó et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Verasztó, Csaba Gühmann, Martin Jia, Huiyong Rajan, Vinoth Babu Veedin Bezares-Calderón, Luis A Piñeiro-Lopez, Cristina Randel, Nadine Shahidi, Réza Michiels, Nico K Yokoyama, Shozo Tessmar-Raible, Kristin Jékely, Gáspár Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title | Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title_full | Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title_fullStr | Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title_full_unstemmed | Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title_short | Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
title_sort | ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6019069/ https://www.ncbi.nlm.nih.gov/pubmed/29809157 http://dx.doi.org/10.7554/eLife.36440 |
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