{"id":37929,"date":"2021-06-02T16:12:42","date_gmt":"2021-06-02T16:12:42","guid":{"rendered":"https:\/\/matis.is\/?p=37929"},"modified":"2021-06-02T16:18:11","modified_gmt":"2021-06-02T16:18:11","slug":"rhodopsin-gene-polymorphism-associated-with-divergent-light-environments-in-atlantic-cod","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/greinar\/rhodopsin-gene-polymorphism-associated-with-divergent-light-environments-in-atlantic-cod\/","title":{"rendered":"Rhodopsin Gene Polymorphism Associated with Divergent Light Environments in Atlantic Cod"},"content":{"rendered":"<p>The spectral sensitivity of visual pigments in vertebrate eyes is optimized for specific light conditions. One of such pigments, rhodopsin (<em>RH1<\/em>), mediates dim-light vision. Amino acid replacements at tuning sites may alter spectral sensitivity, providing a mechanism to adapt to ambient light conditions and depth of habitat in fish. Here we present a first investigation of&nbsp;<em>RH1<\/em>&nbsp;gene polymorphism among two ecotypes of Atlantic cod in Icelandic waters, which experience divergent light environments throughout the year due to alternative foraging behavior. We identified one synonymous single nucleotide polymorphism (SNP) in the&nbsp;<em>RH1<\/em>&nbsp;protein coding region and one in the 3 \u2032 untranslated region (3\u2032-UTR) that are strongly divergent between these two ecotypes. Moreover, these polymorphisms coincided with the well-known panthophysin (<em>Pan<\/em>&nbsp;I) polymorphism that differentiates coastal and frontal (migratory) populations of Atlantic cod. While the&nbsp;<em>RH1<\/em>&nbsp;SNPs do not provide direct inference for a specific molecular mechanism, their association with this dim-sensitive pigment indicates the involvement of the visual system in local adaptation of Atlantic cod.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/link.springer.com\/article\/10.1007\/s10519-014-9701-7\">Link to article<\/a><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>The spectral sensitivity of visual pigments in vertebrate eyes is optimized for specific light conditions. One of such pigments, rhodopsin [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-greinar.php","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2011],"tags":[],"class_list":["post-37929","post","type-post","status-publish","format-standard","hentry","category-greinar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rhodopsin Gene Polymorphism Associated with Divergent Light Environments in Atlantic Cod - Mat\u00eds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/matis.is\/en\/greinar\/rhodopsin-gene-polymorphism-associated-with-divergent-light-environments-in-atlantic-cod\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rhodopsin Gene Polymorphism Associated with Divergent Light Environments in Atlantic Cod - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"The spectral sensitivity of visual pigments in vertebrate eyes is optimized for specific light conditions. 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