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Vision using multiple distinct rod opsins in deep-sea fishes
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2019 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 364, no 6440, p. 588-+Article in journal (Refereed) Published
Abstract [en]

Vertebrate vision is accomplished through light-sensitive photopigments consisting of an opsin protein bound to a chromophore. In dim light, vertebrates generally rely on a single rod opsin [rhodopsin 1 (RH1)] for obtaining visual information. By inspecting 101 fish genomes, we found that three deep-sea teleost lineages have independently expanded their RH1 gene repertoires. Among these, the silver spinyfin (Diretmus argenteus) stands out as having the highest number of visual opsins in vertebrates (two cone opsins and 38 rod opsins). Spinyfins express up to 14 RH1s (including the most blueshifted rod photopigments known), which cover the range of the residual daylight as well as the bioluminescence spectrum present in the deep sea. Our findings present molecular and functional evidence for the recurrent evolution of multiple rod opsin-based vision in vertebrates.

Place, publisher, year, edition, pages
Washington: American Association of Advanced Science , 2019. Vol. 364, no 6440, p. 588-+
National Category
Evolutionary Biology
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URN: urn:nbn:se:umu:diva-159603DOI: 10.1126/science.aav4632ISI: 000467631800043PubMedID: 31073066OAI: oai:DiVA.org:umu-159603DiVA, id: diva2:1325784
Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-06-17Bibliographically approved

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Davies, Wayne I. L.

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Cortesi, FabioDavies, Wayne I. L.Stieb, Sara M.
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