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dc.contributor.authorAykanat, Tutku
dc.contributor.authorRasmussen, Martin
dc.contributor.authorOzerov, Mikhail
dc.contributor.authorNiemelä, Eero
dc.contributor.authorPaulin, Lars
dc.contributor.authorVähä, Juha-Pekka
dc.contributor.authorHindar, Kjetil
dc.contributor.authorWennevik, Vidar
dc.contributor.authorPedersen, Torstein
dc.contributor.authorSvenning, Martin
dc.contributor.authorPrimmer, Craig R.
dc.date.accessioned2020-10-02T08:24:08Z
dc.date.available2020-10-02T08:24:08Z
dc.date.issued2020-08-16
dc.description.abstract1. Animals employ various foraging strategies along their ontogeny to acquire energy, and with varying degree of efficiencies, to support growth, maturation and subsequent reproduction events. Individuals that can efficiently acquire energy early are more likely to mature at an earlier age, as a result of faster energy gain which can fuel maturation and reproduction.<p><p> 2. We aimed to test the hypothesis that heritable resource acquisition variation that covaries with efficiency along the ontogeny would influence maturation timing of individuals.<p><p> 3. To test this hypothesis, we utilized Atlantic salmon as a model which exhibits a simple, hence trackable, genetic control of maturation age. We then monitored the variation in diet acquisition (quantified as stomach fullness and composition) of individuals with different ages, and linked it with genomic regions (haploblocks) that were previously identified to be associated with age‐at‐maturity.<p><p> 4. Consistent with the hypothesis, we demonstrated that one of the life‐history genomic regions tested (<i>six6</i>) was indeed associated with age‐dependent differences in stomach fullness. Prey composition was marginally linked to <i>six6</i>, and suggestively (but non‐significantly) to <i>vgll3</i> genomic regions. We further showed Atlantic salmon switched to the so‐called ‘feast and famine’ strategy along the ontogeny, where older age groups exhibited heavier stomach content, but that came at the expense of running on empty more often.<p><p> 5. These results suggest genetic variation underlying resource utilization may explain the genetic basis of age structure in Atlantic salmon. Given that ontogenetic diet has a genetic component and the strong spatial diversity associated with these genomic regions, we predict populations with diverse maturation age will have diverse evolutionary responses to future changes in marine food web structures.en_US
dc.descriptionThis is the peer reviewed version of the following article: Aykanat, T., Rasmussen, M., Ozerov, M., Niemelä, E., Paulin, L., Vähä, J.-P., ...Primmer, C. R. (2020). Life‐history genomic regions explain differences in Atlantic salmon marine diet specialization. <i>Journal of Animal Ecology, ?</i>(?), 1-15., which has been published in final form at <a href=https://doi.org/10.1111/1365-2656.13324>https://doi.org/10.1111/1365-2656.13324</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_US
dc.identifier.citationAykanat T, Rasmussen, Ozerov M, Niemelä E, Paulin L, Vähä J, Hindar K, Wennevik V, Pedersen TP, Svenning M, Primmer CR. Life history genomic regions explain differences in Atlantic salmon marine diet specialization. Journal of Animal Ecology. 2020en_US
dc.identifier.cristinIDFRIDAID 1824788
dc.identifier.doi10.1111/1365-2656.13324
dc.identifier.issn0021-8790
dc.identifier.issn1365-2656
dc.identifier.urihttps://hdl.handle.net/10037/19530
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalJournal of Animal Ecology
dc.relation.projectIDNorges forskningsråd: 244086en_US
dc.relation.projectIDNorges forskningsråd: 280308en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MILJØFORSK/244086/Norway/Salmon migrating through a maze in a changing world: building a management regime for a multi-stock system affected by mixed-stocked fishing//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MILJØFORSK/280308/Norway/ATLANTIC SALMON AT SEA - factors affecting their growth and survival//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/Programme 2007 - 2013 Kolarctic ENPI CBC/?/EU/Trilateral cooperation in our common resource; the Atlantic salmon in the Barents Region/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holder© 2020 British Ecological Societyen_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en_US
dc.titleLife history genomic regions explain differences in Atlantic salmon marine diet specializationen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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