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A novel sexual system in male gametophytes of Laminaria pallida (Phaeophyceae)

2024Journal article Open access
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dc.contributor.authorLiboureau, Pierre
dc.contributor.authorPearson, Gareth
dc.contributor.authorSerrao, Ester
dc.contributor.authorKreiner, Anja
dc.contributor.authorMartins, Neusa
dc.date.accessioned2024-04-03T10:32:02Z
dc.date.available2024-04-03T10:32:02Z
dc.date.issued2024
dc.description.abstractBrown algae (Phaeophyceae) exhibit a wide diversity of sexual systems, reproductive modes and life histories. The evolution of this diversity has often involved transitions between sexual systems, which may influence genetic diversity and diversification, and phenotypic evolution. This study reports a novel sexual system in kelp. We identified male gametophyte strains of Laminaria pallida that, despite presenting morphological features typical of a male, developed both antheridia and egg-like structures, which suggest an incomplete suppression of femaleness during sexual determination of gametophytes. The sperm released by these variant male gametophytes successfully fertilize eggs produced by female gametophytes, developing into sporophytes with normal morphologies. However, morphologically abnormal sporophytic offspring were formed in isolated variant male gametophytes, indicating that the egg-like structures were not successfully self-fertilized by sperm. The causes of the unsuccessful intragametophytic selfing are unknown, but absence of pheromone production by the egg-like structures is a hypothesis suggested by available evidence. Partial co-sexuality is clearly inherited, as all male gametophyte strains descended from the same sporophyte developed egg-like structures. Further investigation into the genetics and maturation of male partheno-sporophytes will help to estimate the potential effects of this mechanism on natural populations.pt_PT
dc.description.sponsorshipRESTORESEAS EU-BiodivRestore -253, MARAFRICA AGA-KHAN/540316524/2019pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1080/09670262.2024.2314487pt_PT
dc.identifier.eissn1469-4433
dc.identifier.urihttp://hdl.handle.net/10400.1/20568
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor and Francispt_PT
dc.relationEcology and genetics underlying local adaptation to global change across life stages of dominant kelp species
dc.relationNot Available
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBrown algapt_PT
dc.subjectDevelopmentpt_PT
dc.subjectMonoicypt_PT
dc.subjectParthenogenesispt_PT
dc.subjectSexual systemspt_PT
dc.subjectPorophyte formationpt_PT
dc.titleA novel sexual system in male gametophytes of Laminaria pallida (Phaeophyceae)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEcology and genetics underlying local adaptation to global change across life stages of dominant kelp species
oaire.awardTitleNot Available
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F122567%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0039/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso Transnacional Conjunto de 2020 da ERA-NET Cofund BiodivRestore “Conservation and restoration of degraded ecosystems and their biodiversity, including a focus on aquatic systems”/DivRestore%2F0013%2F2020/PT
oaire.citation.endPage10pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEuropean Journal of Phycologypt_PT
oaire.fundingStreamDL 57/2016
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamConcurso Transnacional Conjunto de 2020 da ERA-NET Cofund BiodivRestore “Conservation and restoration of degraded ecosystems and their biodiversity, including a focus on aquatic systems”
person.familyNameLiboureau
person.familyNamePearson
person.familyNameSerrao
person.givenNamePierre
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id1D1A-4459-86D8
person.identifier.orcid0000-0003-0302-1088
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0003-4333-2905
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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