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Differential frond growth in the isomorphic haploid–diploid red seaweed Agarophyton chilense by long‐term in situ monitoring (1)

2021Journal article Open access
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dc.contributor.authorVieira, Vasco M.N.C.S.
dc.contributor.authorEngelen, Aschwin
dc.contributor.authorHuanel, Oscar R.
dc.contributor.authorGuillemin, Marie‐Laure
dc.date.accessioned2021-03-15T14:38:32Z
dc.date.available2021-03-15T14:38:32Z
dc.date.issued2021
dc.description.abstractConditional differentiation between haploids and diploids has been proposed to drive the evolutionary stability of isomorphic biphasic life cycles. The cost of producing and maintaining genetic information has been posed as a possible driver of this conditional differentiation. Under this hypothesis, haploids benefit over diploids in resource-limited environments by halving the costs of producing and maintaining DNA. Spared resources can be allocated to enhance survival, growth or fertility. Here we test in the field whether indeed haploids have higher growth rates than diploids. Individuals of the red seaweed Agarophyton chilense, were mapped and followed during 2 years with 4-month census intervals across different stands within the Valdivia River estuary, Chile. As hypothesized, haploids grew larger and faster than diploids, but this was sex-dependent. Haploid (gametophyte) females grew twice as large and 15% faster than diploids (tetrasporophytes), whereas haploid males only grew as large and as fast as the maximum obtained by diploids in summer. However, haploid males maintained their maximum sizes and growth rates constant year-round, while diploids were smaller and had lower growth rates during the winter. In conclusion, our results confirm the conditional differentiation in size and growth between haploids and diploids but also identified important differences between males and females. Besides understanding life cycle evolution, the dynamics of A. chilense frond growth reported informs algal farmers regarding production optimization and should help in determining best planting and harvesting strategies.pt_PT
dc.description.sponsorshipCONICYT FONDECYT: 1090360/ 1170541.FCT: UIDB/EEA/50009/2020/ SFRH/BPD/107878/2015/ UID/Multi/04326/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/jpy.13110pt_PT
dc.identifier.issn0022-3646
dc.identifier.urihttp://hdl.handle.net/10400.1/15226
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationDEMOGRAPHIC ASSESSMENT OF CONTEMPORARY BIOME DEGRADATION: PROVIDING MANAGEMENT AND RESTORATION TOOLS FOR CORAL, KELP AND SEAGRASS COMMUNITIES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectEvolutionpt_PT
dc.subjectEvolutionary stabilitypt_PT
dc.subjectIso- morphic biphasic life cyclept_PT
dc.subjectPopulation dynamicspt_PT
dc.titleDifferential frond growth in the isomorphic haploid–diploid red seaweed Agarophyton chilense by long‐term in situ monitoring (1)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDEMOGRAPHIC ASSESSMENT OF CONTEMPORARY BIOME DEGRADATION: PROVIDING MANAGEMENT AND RESTORATION TOOLS FOR CORAL, KELP AND SEAGRASS COMMUNITIES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F63703%2F2009/PT
oaire.citation.titleJournal of Phycologypt_PT
person.familyNameEngelen
person.givenNameAschwin
person.identifier.ciencia-id911A-9A0C-744D
person.identifier.orcid0000-0002-9579-9606
person.identifier.ridM-3432-2013
person.identifier.scopus-author-id6701622770
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication33d5a223-f2c9-4c68-984f-9213f15a05b0
relation.isAuthorOfPublication.latestForDiscovery33d5a223-f2c9-4c68-984f-9213f15a05b0
relation.isProjectOfPublication1107bc7a-eee1-403c-a0d0-d7f7bd3fadee
relation.isProjectOfPublication.latestForDiscovery1107bc7a-eee1-403c-a0d0-d7f7bd3fadee

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