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Mates matter: gametophyte kinship recognition and inbreeding in the giant kelp, Macrocystis pyrifera (Laminariales, Phaeophyceae)

2021Journal article Restricted access
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dc.contributor.authorCamus, Carolina
dc.contributor.authorSolas, Maribel
dc.contributor.authorMartinez, Camila
dc.contributor.authorVargas, Jaime
dc.contributor.authorGarces, Cristobal
dc.contributor.authorGil-Kodaka, Patricia
dc.contributor.authorLadah, Lydia B.
dc.contributor.authorSerrao, Ester A.
dc.contributor.authorFaugeron, Sylvain
dc.date.accessioned2021-09-08T10:58:02Z
dc.date.available2021-09-08T10:58:02Z
dc.date.issued2021
dc.description.abstractInbreeding, the mating between genetically related individuals, often results in reduced survival and fecundity of offspring, relative to outcrossing. Yet, high inbreeding rates are commonly observed in seaweeds, suggesting compensatory reproductive traits may affect the costs and benefits of the mating system. We experimentally manipulated inbreeding levels in controlled crossing experiments, using gametophytes from 19 populations of Macrocystis pyrifera along its Eastern Pacific coastal distribution (EPC). The objective was to investigate the effects of male-female kinship on female fecundity and fertility, to estimate inbreeding depression in the F1 progeny, and to assess the variability of these effects among different regions and habitats of the EPC. Results revealed that the presence and kinship of males had a significant effect on fecundity and fertility of female gametophytes. Females left alone or in the presence of sibling males express the highest gametophyte size, number, and size of oogonia, suggesting they were able to sense the presence and the identity of their mates before gamete contact. The opposite trend was observed for the production of embryos per female gametes, indicating higher costs of selfing and parthenogenesis than outcrossing on fertility. However, the increased fecundity compensated for the reduced fertility, leading to a stable overall reproductive output. Inbreeding also affected morphological traits of juvenile sporophytes, but not their heatwave tolerance. The male-female kinship effect was stronger in high-latitude populations, suggesting that females from low-latitude marginal populations might have evolved to mate with any male gamete to guarantee reproductive success.
dc.description.sponsorshipANID/CONICYT FONDECYT de Iniciacion [11170699]; FONDECYTComision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)CONICYT FONDECYT [1160930]; EU-FP7 MARFOR; CONACYT CCC (The Coastal Complexity Crew) project [CB-2013-1, 221662]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1111/jpy.13146
dc.identifier.issn0022-3646
dc.identifier.urihttp://hdl.handle.net/10400.1/17010
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWILEY
dc.relationFunctional Variability and Dynamics of Responses of Marine Forests to Global Change - MARFOR
dc.relationDetermination of molecular dynamics in membrane proteins and protein fibrils using novel solid-state NMR methods
dc.subjectControlled crossing experiment
dc.subjectFecundity
dc.subjectFertility
dc.subjectParthenogenesis
dc.subjectReproductive assurance
dc.subject.otherPlant Sciences; Marine & Freshwater Biology
dc.titleMates matter: gametophyte kinship recognition and inbreeding in the giant kelp, Macrocystis pyrifera (Laminariales, Phaeophyceae)
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFunctional Variability and Dynamics of Responses of Marine Forests to Global Change - MARFOR
oaire.awardTitleDetermination of molecular dynamics in membrane proteins and protein fibrils using novel solid-state NMR methods
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/BIODIVERSA%2F0004%2F2015/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/221662/EU
oaire.citation.endPage725
oaire.citation.startPage711
oaire.citation.titleJournal of Phycology
oaire.citation.volume57
oaire.fundingStream3599-PPCDT
oaire.fundingStreamFP7
person.familyNameSerrao
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-1316-658X
person.identifier.scopus-author-id7004093604
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isProjectOfPublication384a02ca-7ccc-4eab-ba09-5bdf6423f9d2
relation.isProjectOfPublication474bb58b-0866-4f70-9fa1-8e89450ded49
relation.isProjectOfPublication.latestForDiscovery474bb58b-0866-4f70-9fa1-8e89450ded49

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