Repository logo
 
Publication

Thermal traits for reproduction and recruitment differ between Arctic and Atlantic kelp Laminaria digitata

2020Journal article Open access
Simple item page
dc.contributor.authorMartins, Neusa
dc.contributor.authorPearson, Gareth
dc.contributor.authorBernard, Julien
dc.contributor.authorSerrao, Ester
dc.contributor.authorBartsch, Inka
dc.date.accessioned2020-09-25T13:01:26Z
dc.date.available2020-09-25T13:01:26Z
dc.date.issued2020
dc.description.abstractThe plasticity of different kelp populations to heat stress has seldom been investigated excluding environmental effects due to thermal histories, by raising a generation under common garden conditions. Comparisons of populations in the absence of environmental effects allow unbiased quantification of the meta-population adaptive potential and resolution of population-specific differentiation. Following this approach, we tested the hypothesis that genetically distinct arctic and temperate kelp exhibit different thermal phenotypes, by comparing the capacity of their microscopic life stages to recover from elevated temperatures. Gametophytes of Laminaria digitata (Arctic and North Sea) grown at 15°C for 3 years were subjected to common garden conditions with static or dynamic (i.e., gradual) thermal treatments ranging between 15 and 25°C and also to darkness. Gametophyte growth and survival during thermal stress conditions, and subsequent sporophyte recruitment at two recovery temperatures (5 and 15°C), were investigated. Population-specific responses were apparent; North Sea gametophytes exhibited higher growth rates and greater sporophyte recruitment than those from the Arctic when recovering from high temperatures, revealing differential thermal adaptation. All gametophytes performed poorly after recovery from a static 8-day exposure at 22.5°C compared to the response under a dynamic thermal treatment with a peak temperature of 25°C, demonstrating the importance of gradual warming and/or acclimation time in modifying thermal limits. Recovery temperature markedly affected the capacity of gametophytes to reproduce following high temperatures, regardless of the population. Recovery at 5°C resulted in higher sporophyte production following a 15°C and 20°C static exposure, whereas recovery at 15°C was better for gametophyte exposures to static 22.5°C or dynamic heat stress to 25°C. The subtle performance differences between populations originating from sites with contrasting local in situ temperatures support our hypothesis that their thermal plasticity has diverged over evolutionary time scales.pt_PT
dc.description.sponsorshipFCT: PTDC/MAR-EST/6053/2014/ UID/Multi/04326/2019/ BIODIVERSA/0004/2015/ SFRH/BPD/122567/2016/ DL 57/2016/CP1361/CT0039/ SFRH/BSAB/150485/2019pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1371/journal.pone.0235388pt_PT
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10400.1/14746
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPublic Library of Sciencept_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAcclimatizationpt_PT
dc.subjectArctic regionspt_PT
dc.subjectGerm cellspt_PT
dc.subjectGlobal warmingpt_PT
dc.subjectHeat-shock responsept_PT
dc.subjectHot temperaturept_PT
dc.subjectLaminariapt_PT
dc.subjectNorth Seapt_PT
dc.subjectPhenotypept_PT
dc.subjectReproductionpt_PT
dc.subjectTemperaturept_PT
dc.titleThermal traits for reproduction and recruitment differ between Arctic and Atlantic kelp Laminaria digitatapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6pt_PT
oaire.citation.startPagee0235388pt_PT
oaire.citation.titlePLoS ONEpt_PT
oaire.citation.volume15pt_PT
person.familyNamePearson
person.familyNameSerrao
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-id1D1A-4459-86D8
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-4333-2905
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication7a8c0acc-a718-46d5-98dc-a724f1266e09
relation.isAuthorOfPublication0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Thermal traits for reproduction and recruitment differ between Arctic and Atlantic kelpLaminaria digitata .pdf
Size:
1.72 MB
Format:
Adobe Portable Document Format
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)