Opsins in Onychophora (Velvet Worms) Suggest a Single Origin and Subsequent Diversification of Visual Pigments in Arthropods
(2012) In Molecular biology and evolution 29(11). p.3451-3458- Abstract
- Multiple visual pigments, prerequisites for color vision, are found in arthropods, but the evolutionary origin of their diversity remains obscure. In this study, we explore the opsin genes in five distantly related species of Onychophora, using deep transcriptome sequencing and screening approaches. Surprisingly, our data reveal the presence of only one opsin gene (onychopsin) in each onychophoran species, and our behavioral experiments indicate a maximum sensitivity of onychopsin to blue-green light. In our phylogenetic analyses, the onychopsins represent the sister group to the monophyletic clade of visual r-opsins of arthropods. These results concur with phylogenomic support for the sister-group status of the Onychophora and Arthropoda... (More)
- Multiple visual pigments, prerequisites for color vision, are found in arthropods, but the evolutionary origin of their diversity remains obscure. In this study, we explore the opsin genes in five distantly related species of Onychophora, using deep transcriptome sequencing and screening approaches. Surprisingly, our data reveal the presence of only one opsin gene (onychopsin) in each onychophoran species, and our behavioral experiments indicate a maximum sensitivity of onychopsin to blue-green light. In our phylogenetic analyses, the onychopsins represent the sister group to the monophyletic clade of visual r-opsins of arthropods. These results concur with phylogenomic support for the sister-group status of the Onychophora and Arthropoda and provide evidence for monochromatic vision in velvet worms and in the last common ancestor of Onychophora and Arthropoda. We conclude that the diversification of visual pigments and color vision evolved in arthropods, along with the evolution of compound eyes-one of the most sophisticated visual systems known. (Less)
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https://lup.lub.lu.se/record/3284241
- author
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- vision, opsin evolution, Arthropoda, Panarthropoda, compound eyes
- in
- Molecular biology and evolution
- volume
- 29
- issue
- 11
- pages
- 3451 - 3458
- publisher
- Oxford University Press
- external identifiers
-
- wos:000310167700018
- scopus:84867760559
- pmid:22683812
- ISSN
- 0737-4038
- DOI
- 10.1093/molbev/mss148
- language
- English
- LU publication?
- yes
- id
- 4bbcca3e-42c9-448f-ac82-28ab331a51a2 (old id 3284241)
- date added to LUP
- 2016-04-01 10:01:11
- date last changed
- 2024-04-06 21:46:31
@article{4bbcca3e-42c9-448f-ac82-28ab331a51a2, abstract = {{Multiple visual pigments, prerequisites for color vision, are found in arthropods, but the evolutionary origin of their diversity remains obscure. In this study, we explore the opsin genes in five distantly related species of Onychophora, using deep transcriptome sequencing and screening approaches. Surprisingly, our data reveal the presence of only one opsin gene (onychopsin) in each onychophoran species, and our behavioral experiments indicate a maximum sensitivity of onychopsin to blue-green light. In our phylogenetic analyses, the onychopsins represent the sister group to the monophyletic clade of visual r-opsins of arthropods. These results concur with phylogenomic support for the sister-group status of the Onychophora and Arthropoda and provide evidence for monochromatic vision in velvet worms and in the last common ancestor of Onychophora and Arthropoda. We conclude that the diversification of visual pigments and color vision evolved in arthropods, along with the evolution of compound eyes-one of the most sophisticated visual systems known.}}, author = {{Hering, Lars and Henze, Miriam and Kohler, Martin and Kelber, Almut and Bleidorn, Christoph and Leschke, Maren and Nickel, Birgit and Meyer, Matthias and Kircher, Martin and Sunnucks, Paul and Mayer, Georg}}, issn = {{0737-4038}}, keywords = {{vision; opsin evolution; Arthropoda; Panarthropoda; compound eyes}}, language = {{eng}}, number = {{11}}, pages = {{3451--3458}}, publisher = {{Oxford University Press}}, series = {{Molecular biology and evolution}}, title = {{Opsins in Onychophora (Velvet Worms) Suggest a Single Origin and Subsequent Diversification of Visual Pigments in Arthropods}}, url = {{http://dx.doi.org/10.1093/molbev/mss148}}, doi = {{10.1093/molbev/mss148}}, volume = {{29}}, year = {{2012}}, }