Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua)
Teleosts show a great variety in visual opsin complement, due to both gene duplication and gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) including rod opsin only retinas seen in many deep-sea species to multiple subfamilies of visual opsins in some pelagic sp...
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Online Access: | http://hdl.handle.net/11250/275063 https://doi.org/10.1371/journal.pone.0115436 |
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ftimr:oai:imr.brage.unit.no:11250/275063 2023-05-15T15:27:04+02:00 Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) Valen, Ragnhild Edvardsen, Rolf B. Søviknes, Anne Mette Drivenes, Øyvind Helvik, Jon Vidar 2014-12-31 application/pdf http://hdl.handle.net/11250/275063 https://doi.org/10.1371/journal.pone.0115436 eng eng Public Library of Science Norwegian Research Council: 199482. Valen R, Edvardsen RB, Søviknes AM, Drivenes Ø, Helvik JV (2014) Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua). PLoS ONE 9(12): e115436. doi:10.1371/journal.pone.0115436 urn:issn:1932-6203 http://hdl.handle.net/11250/275063 https://doi.org/10.1371/journal.pone.0115436 cristin:1204616 Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ CC-BY-SA 24 p. 9 PLoS ONE 12 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Journal article Peer reviewed 2014 ftimr https://doi.org/10.1371/journal.pone.0115436 2021-09-23T20:15:08Z Teleosts show a great variety in visual opsin complement, due to both gene duplication and gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) including rod opsin only retinas seen in many deep-sea species to multiple subfamilies of visual opsins in some pelagic species. We have investigated the opsin repertoire of Atlantic cod (Gadus morhua) using information in the recently sequenced cod genome and found that despite cod not being a deep sea species it lacks visual subfamilies sensitive towards the most extreme parts of the light spectra representing UV and red light. Furthermore, we find that Atlantic cod has duplicated paralogs of both blue-sensitive SWS2 and green-sensitive RH2 subfamilies, with members belonging to each subfamily linked in tandem within the genome (two SWS2-, and three RH2A genes, respectively). The presence of multiple cone opsin genes indicates that there have been duplication events in the cod ancestor SWS2 and RH2 opsins producing paralogs that have been retained in Atlantic. Our results are supported by expressional analysis of cone opsins, which further revealed an ontogenetic change in the array of cone opsins expressed. These findings suggest life stage specific programs for opsin regulation which could be linked to habitat changes and available light as the larvae is transformed into an early juvenile. Altogether we provide the first molecular evidence for color vision driven by only two families of cone opsins due to gene loss in a teleost. Article in Journal/Newspaper atlantic cod Gadus morhua Institute for Marine Research: Brage IMR PLoS ONE 9 12 e115436 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
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VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Valen, Ragnhild Edvardsen, Rolf B. Søviknes, Anne Mette Drivenes, Øyvind Helvik, Jon Vidar Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
description |
Teleosts show a great variety in visual opsin complement, due to both gene duplication and gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) including rod opsin only retinas seen in many deep-sea species to multiple subfamilies of visual opsins in some pelagic species. We have investigated the opsin repertoire of Atlantic cod (Gadus morhua) using information in the recently sequenced cod genome and found that despite cod not being a deep sea species it lacks visual subfamilies sensitive towards the most extreme parts of the light spectra representing UV and red light. Furthermore, we find that Atlantic cod has duplicated paralogs of both blue-sensitive SWS2 and green-sensitive RH2 subfamilies, with members belonging to each subfamily linked in tandem within the genome (two SWS2-, and three RH2A genes, respectively). The presence of multiple cone opsin genes indicates that there have been duplication events in the cod ancestor SWS2 and RH2 opsins producing paralogs that have been retained in Atlantic. Our results are supported by expressional analysis of cone opsins, which further revealed an ontogenetic change in the array of cone opsins expressed. These findings suggest life stage specific programs for opsin regulation which could be linked to habitat changes and available light as the larvae is transformed into an early juvenile. Altogether we provide the first molecular evidence for color vision driven by only two families of cone opsins due to gene loss in a teleost. |
format |
Article in Journal/Newspaper |
author |
Valen, Ragnhild Edvardsen, Rolf B. Søviknes, Anne Mette Drivenes, Øyvind Helvik, Jon Vidar |
author_facet |
Valen, Ragnhild Edvardsen, Rolf B. Søviknes, Anne Mette Drivenes, Øyvind Helvik, Jon Vidar |
author_sort |
Valen, Ragnhild |
title |
Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
title_short |
Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
title_full |
Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
title_fullStr |
Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
title_full_unstemmed |
Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua) |
title_sort |
molecular evidence that only two opsin subfamilies, the blue light- (sws2) and green light-sensitive (rh2), drive color vision in atlantic cod (gadus morhua) |
publisher |
Public Library of Science |
publishDate |
2014 |
url |
http://hdl.handle.net/11250/275063 https://doi.org/10.1371/journal.pone.0115436 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
24 p. 9 PLoS ONE 12 |
op_relation |
Norwegian Research Council: 199482. Valen R, Edvardsen RB, Søviknes AM, Drivenes Ø, Helvik JV (2014) Molecular Evidence that Only Two Opsin Subfamilies, the Blue Light- (SWS2) and Green Light-Sensitive (RH2), Drive Color Vision in Atlantic Cod (Gadus morhua). PLoS ONE 9(12): e115436. doi:10.1371/journal.pone.0115436 urn:issn:1932-6203 http://hdl.handle.net/11250/275063 https://doi.org/10.1371/journal.pone.0115436 cristin:1204616 |
op_rights |
Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ |
op_rightsnorm |
CC-BY-SA |
op_doi |
https://doi.org/10.1371/journal.pone.0115436 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
12 |
container_start_page |
e115436 |
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1766357537012056064 |