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dc.contributor.authorFigueroa, R.I. (Rosa Isabel) 
dc.contributor.authorHowe-Kerr, Lauren I.
dc.contributor.authorCorrea, Adrianne M.S.
dc.date.accessioned2021-09-29T10:58:54Z
dc.date.available2021-09-29T10:58:54Z
dc.date.issued2021-09-22
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10508/12096
dc.description.abstractDinoflagellates in the family Symbiodiniaceae are obligate endosymbionts of diverse marine invertebrates, including corals, and impact the capacity of their hosts to respond to climate change-driven ocean warming. Understanding the conditions under which increased genetic variation in Symbiodiniaceae arises via sexual recombination can support efforts to evolve thermal tolerance in these symbionts and ultimately mitigate coral bleaching, the breakdown of the coral-Symbiodiniaceae partnership under stress. However, direct observations of meiosis in Symbiodiniaceae have not been reported, despite various lines of indirect evidence that it occurs. We present the first cytological evidence of sex in Symbiodiniaceae based on nuclear DNA content and morphology using Image Flow Cytometry, Cell Sorting and Confocal Microscopy. We show the Symbiodiniaceae species, Cladocopium latusorum, undergoes gamete conjugation, zygote formation, and meiosis within a dominant reef-building coral in situ. On average, sex was detected in 1.5% of the cells analyzed (N = 10,000–40,000 cells observed per sample in a total of 20 samples obtained from 3 Pocillopora colonies). We hypothesize that meiosis follows a two-step process described in other dinoflagellates, in which diploid zygotes form dyads during meiosis I, and triads and tetrads as final products of meiosis II. This study sets the stage for investigating environmental triggers of Symbiodiniaceae sexuality and can accelerate the assisted evolution of a key coral symbiont in order to combat reef degradation.
dc.language.isoenges_ES
dc.subjectCoralses_ES
dc.subjectDinoflagellateses_ES
dc.subjectSexes_ES
dc.subjectSymbioseses_ES
dc.subjectSymbiodiniaceaees_ES
dc.subjectFlow Cytometryes_ES
dc.titleDirect evidende of sex and a hypothesis about meiosis in Symbiodiniaceaees_ES
dc.typearticlees_ES
dc.identifier.bibliographicCitationFigueroa, R.I., Howe-Kerr, L.I., Correa, A.M.S. 2021. Direct evidence of sex and a hypothesis about meiosis in Symbiodiniaceae. Scientific Reports 11(1):18838es_ES
dc.relation.publisherversionhttps://www.nature.com/articles/s41598-021-98148-9
dc.publisher.centreCentro Oceanográfico de Vigoes_ES
dc.relation.projectIDCMT2017-86066-Res_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.doi10.1038/s41598-021-98148-9
dc.subject.asfalineses_ES
dc.subject.asfamarine invertebrateses_ES
dc.subject.asfagenetic diversityes_ES
dc.subject.asfableachinges_ES
dc.subject.asfasymbiontses_ES
dc.project.acronymDIANASes_ES
dc.project.titleDETECCIÓN INNOVADORA DE PROLIFERACIONES ALGALES TÓXICAS: UNA NECESIDAD FRENTE AL CALENTAMIENTO GLOBAL*


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