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dc.contributor.authorTaugbøl, Annette
dc.contributor.authorArntsen, Tina
dc.contributor.authorØstbye, Kjartan
dc.contributor.authorVøllestad, Leif Asbjørn
dc.date.accessioned2015-02-26T10:14:05Z
dc.date.available2015-02-26T10:14:05Z
dc.date.issued2014
dc.identifier.citationTaugbøl A, Arntsen T, Østbye K, Vøllestad LA (2014) Small Changes in Gene Expression of Targeted Osmoregulatory Genes When Exposing Marine and Freshwater Threespine Stickleback (Gasterosteus aculeatus) to Abrupt Salinity Transfers. PLoS ONE 9(9): e106894. doi:10.1371/journal.pone.0106894nb_NO
dc.identifier.urihttp://hdl.handle.net/11250/277792
dc.description.abstractSalinity is one of the key factors that affects metabolism, survival and distribution of fish species, as all fish osmoregulate and euryhaline fish maintain osmotic differences between their extracellular fluid and either freshwater or seawater. The threespine stickleback (Gasterosteus aculeatus) is a euryhaline species with populations in both marine and freshwater environments, where the physiological and genomic basis for salinity tolerance adaptation is not fully understood. Therefore, our main objective in this study was to investigate gene expression of three targeted osmoregulatory genes (Na+/K+-ATPase (ATPA13), cystic fibrosis transmembrane regulator (CFTR) and a voltage gated potassium channel gene (KCNH4) and one stress related heat shock protein gene (HSP70)) in gill tissue from marine and freshwater populations when exposed to non-native salinity for periods ranging from five minutes to three weeks. Overall, the targeted genes showed highly plastic expression profiles, in addition the expression of ATP1A3 was slightly higher in saltwater adapted fish and KCNH4 and HSP70 had slightly higher expression in freshwater. As no pronounced changes were observed in the expression profiles of the targeted genes, this indicates that the osmoregulatory apparatuses of both the marine and landlocked freshwater stickleback population have not been environmentally canalized, but are able to respond plastically to abrupt salinity challenges.nb_NO
dc.language.isoengnb_NO
dc.publisherPlos onenb_NO
dc.titleSmall Changes in Gene Expression of Targeted Osmoregulatory Genes When Exposing Marine and Freshwater Threespine Stickleback (Gasterosteus aculeatus) to Abrupt Salinity Transfersnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920nb_NO
dc.source.pagenumbere106894nb_NO
dc.source.volume9nb_NO
dc.source.journalPlos onenb_NO
dc.source.issue9nb_NO
dc.identifier.doi10.1371/journal.pone.0106894


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