Parthenogenesis in the brown alga <i>Lessonia nigrescens</i> (Laminariales, Phaeophyceae) from central Chile

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dc.contributor.authorOppliger, L. Valeria
dc.contributor.authorCorrea, Juan A.
dc.contributor.authorPeters, Akira F.
dc.date.accessioned2025-01-21T01:05:18Z
dc.date.available2025-01-21T01:05:18Z
dc.date.issued2007
dc.description.abstractParthenogenesis, the development of female gametes without fertilization, is relatively common in brown algae, although limited quantitative information on the phenomenon is available. Its occurrence is reported for the first time in Lessonia nigrescens Bory, a member of the Laminariales and a key ecological component of the benthic algal communities along the Chilean coast. Isolated female gametophytes developed into parthenosporophytes throughout the year, with a maximum in spring to early summer. Isolated male gametophytes, on the other hand, never developed fronds. Parthenosporophytes obtained in the laboratory developed normally when cultivated under greenhouse conditions, and the resulting individuals were indistinguishable in size, shape, texture, and color from heterozygous sporophytes. Quantification of DNA of various tissues demonstrated that early during their development, parthenosporophytes duplicated their DNA content, displaying levels similar to heterozygous sporophytes and almost twice the level found in gametophytes. One out of 45 individuals from a field population yielded only female gametophytes, strongly suggesting that parthenogenesis does occur in wild stands of L. nigrescens.
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1529-8817.2007.00408.x
dc.identifier.issn0022-3646
dc.identifier.urihttps://doi.org/10.1111/j.1529-8817.2007.00408.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95885
dc.identifier.wosidWOS:000251416100018
dc.issue.numero6
dc.language.isoen
dc.pagina.final1301
dc.pagina.inicio1295
dc.revistaJournal of phycology
dc.rightsacceso restringido
dc.subjectDNA quantification
dc.subjectflow cytometry
dc.subjectLessonia nigrescens
dc.subjectparthenogenesis
dc.subjectphaeophyceae
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleParthenogenesis in the brown alga <i>Lessonia nigrescens</i> (Laminariales, Phaeophyceae) from central Chile
dc.typeartículo
dc.volumen43
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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