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Population level variation in reproductive development and output in the golden kelp Laminaria ochroleuca under marine heat wave scenarios

2022-09Journal article Open access
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dc.contributor.authorStrasser, Fiona-Elaine
dc.contributor.authorBarreto, Luis M.
dc.contributor.authorKaidi, Soukaina
dc.contributor.authorSabour, Brahim
dc.contributor.authorA, Serrão
dc.contributor.authorPearson, Gareth
dc.contributor.authorMartins, Neusa
dc.date.accessioned2023-01-14T11:35:01Z
dc.date.available2023-01-14T11:35:01Z
dc.date.issued2022-09
dc.description.abstractThermal tolerance is often interpreted as a species-wide thermal niche in the absence of studies focusing on the adaptive potential of populations to exhibit differential thermal tolerance. Thus, considering intraspecific thermal plasticity, local adaptation or both between populations along distributional gradients when interpreting and predicting species responses to warming is imperative. Removing the effect of environmental histories by raising kelp gametophyte generations in vitro under common garden conditions allows unbiased comparison between population-specific adaptive variation under different environmental conditions. Following this approach, this study aims to detect (potentially) adaptive differentiation in microscopic life-stages (gametophytes) between populations of a temperate forest forming kelp, Laminaria ochroleuca from locations with distinct thermal conditions. Gametophytes from four geographically distinct populations were subjected to different temperature treatments (17, marine heat waves of 23, 25 and 27 degrees C) and gametophyte survival during thermal stress as well as reproductive success and photosynthetic responses during recovery were investigated. Intraspecific variation in resilience and reproductive output to thermal stress was found in L. ochroleuca; gametophytes from the most northern population (Brittany, France) were the most thermally sensitive, with mortality onset at 23 degrees C, whereas mortality in the remaining populations was only apparent at 27 degrees C. Gametophytes from northern Spain and Morocco exhibited very low reproductive success during recovery from 23 and 25 degrees C. However, when recovering from the highest thermal treatment (27 degrees C) the reproductive development and sporophyte output was higher than in the gametophytes from France and Italy (Mediterranean). The population-specific responses of gametophyte resilience and reproductive success to temperature stress suggest genetic differentiation in response to variation in local thermal regimes.pt_PT
dc.description.sponsorshipEMBRC.PT ALG-01-0145-FEDER-022121
dc.description.sponsorshipMARAFRICA:AGA-KHAN/540316524/2019
dc.description.sponsorship0504/19/CNR
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fmars.2022.943511pt_PT
dc.identifier.eissn2296-7745
dc.identifier.urihttp://hdl.handle.net/10400.1/18814
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationAssociation of European Marine Biological Laboratories Expanded
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGametophytept_PT
dc.subjectSporophypt_PT
dc.subjectTetemperaturept_PT
dc.subjectkelppt_PT
dc.subjectNorth Atlanticpt_PT
dc.subjectAdaptive potentialpt_PT
dc.titlePopulation level variation in reproductive development and output in the golden kelp Laminaria ochroleuca under marine heat wave scenariospt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociation of European Marine Biological Laboratories Expanded
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/730984/EU
oaire.citation.titleFrontiers in Marine Sciencept_PT
oaire.citation.volume9pt_PT
oaire.fundingStreamH2020
person.familyNameStrasser
person.familyNamede Matos Barreto
person.familyNameSerrao
person.familyNamePearson
person.givenNameFiona-Elaine
person.givenNameLuís António
person.givenNameEster A.
person.givenNameGareth Anthony
person.identifierC-6686-2012
person.identifier113536
person.identifier.ciencia-id1D17-7538-6B6D
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id1D1A-4459-86D8
person.identifier.orcid0000-0003-3890-055X
person.identifier.orcid0000-0003-0774-0565
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-4333-2905
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id55916875600
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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