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Opsins in onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods.
Mol Biol Evol. 2012 Nov; 29(11):3451-8.MB

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.

Authors+Show Affiliations

Animal Evolution and Development, Institute of Biology, University of Leipzig, Leipzig, Germany. lars.hering@uni-leipzig.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22683812

Citation

Hering, Lars, et al. "Opsins in Onychophora (velvet Worms) Suggest a Single Origin and Subsequent Diversification of Visual Pigments in Arthropods." Molecular Biology and Evolution, vol. 29, no. 11, 2012, pp. 3451-8.
Hering L, Henze MJ, Kohler M, et al. Opsins in onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods. Mol Biol Evol. 2012;29(11):3451-8.
Hering, L., Henze, M. J., Kohler, M., Kelber, A., Bleidorn, C., Leschke, M., Nickel, B., Meyer, M., Kircher, M., Sunnucks, P., & Mayer, G. (2012). Opsins in onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods. Molecular Biology and Evolution, 29(11), 3451-8. https://doi.org/10.1093/molbev/mss148
Hering L, et al. Opsins in Onychophora (velvet Worms) Suggest a Single Origin and Subsequent Diversification of Visual Pigments in Arthropods. Mol Biol Evol. 2012;29(11):3451-8. PubMed PMID: 22683812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Opsins in onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods. AU - Hering,Lars, AU - Henze,Miriam J, AU - Kohler,Martin, AU - Kelber,Almut, AU - Bleidorn,Christoph, AU - Leschke,Maren, AU - Nickel,Birgit, AU - Meyer,Matthias, AU - Kircher,Martin, AU - Sunnucks,Paul, AU - Mayer,Georg, Y1 - 2012/06/07/ PY - 2012/6/12/entrez PY - 2012/6/12/pubmed PY - 2013/3/6/medline SP - 3451 EP - 8 JF - Molecular biology and evolution JO - Mol Biol Evol VL - 29 IS - 11 N2 - 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. SN - 1537-1719 UR - https://www.unboundmedicine.com/medline/citation/22683812/Opsins_in_onychophora__velvet_worms__suggest_a_single_origin_and_subsequent_diversification_of_visual_pigments_in_arthropods_ L2 - https://academic.oup.com/mbe/article-lookup/doi/10.1093/molbev/mss148 DB - PRIME DP - Unbound Medicine ER -