Opsin genes of select treeshrews resolve ancestral character states within Scandentia

Duytschaever, Gwen; Janiak, Mareike C.; Ong, Perry S.; Wells, Konstans; Dominy, Nathaniel J.; Melin, Amanda D.

doi:10.1098/rsos.182037

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Opsin genes of select treeshrews resolve ancestral character states within Scandentia

Gwen Duytschaever, Mareike C. Janiak, Perry S. Ong, Konstans Wells

, Nathaniel J. Dominy, Amanda D. Melin

Royal Society Open Science, Volume: 6, Issue: 4, Start page: 182037

Swansea University Author: Konstans Wells

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DOI (Published version): 10.1098/rsos.182037

Abstract

Treeshrews are small, squirrel-like mammals in the order Scandentia, which is nested together with Primates andDermoptera in the superordinal group Euarchonta. They are often described as living fossils, and researchers havelong turned to treeshrews as a model or ecological analogue for ancestral pr...

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Published in:	Royal Society Open Science
ISSN:	2054-5703 2054-5703
Published:	2019
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URI:	https://cronfa.swan.ac.uk/Record/cronfa49696
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spelling	2022-11-15T15:17:05.8154802 v2 49696 2019-03-22 Opsin genes of select treeshrews resolve ancestral character states within Scandentia d18166c31e89833c55ef0f2cbb551243 0000-0003-0377-2463 Konstans Wells Konstans Wells true false 2019-03-22 SBI Treeshrews are small, squirrel-like mammals in the order Scandentia, which is nested together with Primates andDermoptera in the superordinal group Euarchonta. They are often described as living fossils, and researchers havelong turned to treeshrews as a model or ecological analogue for ancestral primates. A comparative study of colourvision-encoding genes within Scandentia found a derived amino acid substitution in the long-wavelength sensitiveopsin gene (OPN1LW) of the Bornean smooth-tailed treeshrew (Dendrogale melanura). The opsin, by inference, isred-shifted by ca. 6 nm with an inferred peak sensitivity of 561 nm. It is tempting to view this trait as a novel visualadaptation; however, the genetic and functional diversity of visual pigments in treeshrews is unresolved outside ofBorneo. Here we report gene sequences from the northern smooth-tailed treeshrew (Dendrogale murina) and theMindanao treeshrew (Tupaia everetti, the senior synonym of Urogale everetti). We found that the opsin genes areunder purifying selection and that D. murina shares the same substitution as its congener, a result that distinguishesDendrogale from other treeshrews, including T. everetti. We discuss the implications of opsin functional variation inlight of limited knowledge about the visual ecology of smooth-tailed treeshrews. Journal Article Royal Society Open Science 6 4 182037 2054-5703 2054-5703 Dendrogale murina, northern smooth-tailed treeshrew, Tupaia everetti, Urogale, Mindanao treeshrew 24 4 2019 2019-04-24 10.1098/rsos.182037 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.182037 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University Another institution paid the OA fee National Sciences and Engineering Research Council of Canada, The Canada Research Chairs program, The Alberta Children's Hospital Research Institute 2022-11-15T15:17:05.8154802 2019-03-22T08:38:30.7832122 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Gwen Duytschaever 1 Mareike C. Janiak 2 Perry S. Ong 3 Konstans Wells 0000-0003-0377-2463 4 Nathaniel J. Dominy 5 Amanda D. Melin 6 0049696-24042019173244.pdf Duytschaever-etal_2019_RSocOpenSci.pdf 2019-04-24T17:32:44.6070000 Output 641453 application/pdf Version of Record true 2019-04-24T00:00:00.0000000 Released under the terms of a Creative Commons Attribution 4.0 International license (CC-BY). true eng
title	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
spellingShingle	Opsin genes of select treeshrews resolve ancestral character states within Scandentia Konstans Wells
title_short	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
title_full	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
title_fullStr	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
title_full_unstemmed	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
title_sort	Opsin genes of select treeshrews resolve ancestral character states within Scandentia
author_id_str_mv	d18166c31e89833c55ef0f2cbb551243
author_id_fullname_str_mv	d18166c31e89833c55ef0f2cbb551243_***_Konstans Wells
author	Konstans Wells
author2	Gwen Duytschaever Mareike C. Janiak Perry S. Ong Konstans Wells Nathaniel J. Dominy Amanda D. Melin
format	Journal article
container_title	Royal Society Open Science
container_volume	6
container_issue	4
container_start_page	182037
publishDate	2019
institution	Swansea University
issn	2054-5703 2054-5703
doi_str_mv	10.1098/rsos.182037
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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department_str	School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url	https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.182037
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description	Treeshrews are small, squirrel-like mammals in the order Scandentia, which is nested together with Primates andDermoptera in the superordinal group Euarchonta. They are often described as living fossils, and researchers havelong turned to treeshrews as a model or ecological analogue for ancestral primates. A comparative study of colourvision-encoding genes within Scandentia found a derived amino acid substitution in the long-wavelength sensitiveopsin gene (OPN1LW) of the Bornean smooth-tailed treeshrew (Dendrogale melanura). The opsin, by inference, isred-shifted by ca. 6 nm with an inferred peak sensitivity of 561 nm. It is tempting to view this trait as a novel visualadaptation; however, the genetic and functional diversity of visual pigments in treeshrews is unresolved outside ofBorneo. Here we report gene sequences from the northern smooth-tailed treeshrew (Dendrogale murina) and theMindanao treeshrew (Tupaia everetti, the senior synonym of Urogale everetti). We found that the opsin genes areunder purifying selection and that D. murina shares the same substitution as its congener, a result that distinguishesDendrogale from other treeshrews, including T. everetti. We discuss the implications of opsin functional variation inlight of limited knowledge about the visual ecology of smooth-tailed treeshrews.
published_date	2019-04-24T04:00:52Z
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Opsin genes of select treeshrews resolve ancestral character states within Scandentia

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