Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/23417
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dc.contributor.authorBetancor, Monicaen_UK
dc.contributor.authorOlsen, Rolf Een_UK
dc.contributor.authorSolstorm, Daviden_UK
dc.contributor.authorSkulstad, Ole Fredriken_UK
dc.contributor.authorTocher, Douglas Ren_UK
dc.date.accessioned2017-08-28T22:13:48Z-
dc.date.available2017-08-28T22:13:48Z-
dc.date.issued2016-03en_UK
dc.identifier.urihttp://hdl.handle.net/1893/23417-
dc.description.abstractThe natural food for Atlantic salmon (Salmo salar) in freshwater has relatively low levels of omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), whereas post-smolt salmon in seawater have a diet naturally rich in n-3 LC-PUFA. Land-locked salmon such as the Gullspång population feed exclusively on freshwater type lipids during its entire life cycle, a successful adaptation derived from divergent evolution. Studying land-locked populations may provide insights into the molecular and genetic control mechanisms that determine and regulate n-3 LC-PUFA biosynthesis and retention in Atlantic salmon. A two factorial study was performed comparing land-locked and farmed salmon parr fed diets formulated with fish or rapeseed oil for 8 weeks. The land-locked parr had higher capacity to synthesise n-3 LC-PUFA as indicated by higher expression and activity of desaturase and elongase enzymes. The data suggested that the land-locked salmon had reduced sensitivity to dietary fatty acid composition and that dietary docosahexaenoic acid (DHA) did not appear to suppress expression of LC-PUFA biosynthetic genes or activity of the biosynthesis pathway, probably an evolutionary adaptation to a natural diet lower in DHA. Increased biosynthetic activity did not translate to enhanced n-3 LC-PUFA contents in the flesh and diet was the only factor affecting this parameter. Additionally, high lipogenic and glycolytic potentials were found in land-locked salmon, together with decreased lipolysis which in turn could indicate increased use of carbohydrates as an energy source and a sparing of lipid.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationBetancor M, Olsen RE, Solstorm D, Skulstad OF & Tocher DR (2016) Assessment of a land-locked Atlantic salmon (Salmo salar L.) population as a potential genetic resource with a focus on long-chain polyunsaturated fatty acid biosynthesis. Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1861 (3), pp. 227-238. https://doi.org/10.1016/j.bbalip.2015.12.015en_UK
dc.rightsThis item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: Betancor M, Olsen RE, Solstorm D, Skulstad OF & Tocher DR (2016) Assessment of a land-locked Atlantic salmon (Salmo salar L.) population as a potential genetic resource with a focus on long-chain polyunsaturated fatty acid biosynthesis, Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1861 (3), pp. 227-238. DOI: 10.1016/j.bbalip.2015.12.015 © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.subjectomega-3 long chain polyunsaturated fatty acidsen_UK
dc.subjectAtlantic salmonen_UK
dc.subjectland-lockeden_UK
dc.subjectdesaturasesen_UK
dc.subjectelongasesen_UK
dc.titleAssessment of a land-locked Atlantic salmon (Salmo salar L.) population as a potential genetic resource with a focus on long-chain polyunsaturated fatty acid biosynthesisen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2017-03-01en_UK
dc.rights.embargoreason[Betancor et al 2016 BBA.pdf] Publisher requires embargo of 12 months after formal publication.en_UK
dc.identifier.doi10.1016/j.bbalip.2015.12.015en_UK
dc.identifier.pmid26732752en_UK
dc.citation.jtitleBiochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolismen_UK
dc.citation.issn0005-2760en_UK
dc.citation.volume1861en_UK
dc.citation.issue3en_UK
dc.citation.spage227en_UK
dc.citation.epage238en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.author.emailm.b.betancor@stir.ac.uken_UK
dc.citation.date28/12/2015en_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationMatre Aquaculture Research Stationen_UK
dc.contributor.affiliationNorwegian Institute of Marine Researchen_UK
dc.contributor.affiliationMatre Aquaculture Research Stationen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.identifier.isiWOS:000370097300009en_UK
dc.identifier.scopusid2-s2.0-84953924044en_UK
dc.identifier.wtid563207en_UK
dc.contributor.orcid0000-0003-1626-7458en_UK
dc.contributor.orcid0000-0002-8603-9410en_UK
dc.date.accepted2015-12-18en_UK
dcterms.dateAccepted2015-12-18en_UK
dc.date.filedepositdate2016-06-29en_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionAMen_UK
local.rioxx.authorBetancor, Monica|0000-0003-1626-7458en_UK
local.rioxx.authorOlsen, Rolf E|en_UK
local.rioxx.authorSolstorm, David|en_UK
local.rioxx.authorSkulstad, Ole Fredrik|en_UK
local.rioxx.authorTocher, Douglas R|0000-0002-8603-9410en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2017-03-01en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||2017-02-28en_UK
local.rioxx.licencehttp://creativecommons.org/licenses/by-nc-nd/4.0/|2017-03-01|en_UK
local.rioxx.filenameBetancor et al 2016 BBA.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source0005-2760en_UK
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