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Certified by nature: a new species of the gelatinous alga Dudresnaya (Dumontiaceae, Rhodophyta) from the Azores

2021-05-27Conference object Open access
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dc.contributor.authorGabriel, Daniela
dc.contributor.authorNeto, Ana I.
dc.contributor.authorFredericq, Suzanne
dc.date.accessioned2024-03-27T11:07:40Z
dc.date.available2024-03-27T11:07:40Z
dc.date.issued2021-05-27
dc.description.abstractABSTACT: Dudresnaya, a red algal genus belonging in the family Dumontiaceae, currently comprises 21 species of gelatinous algae from tropical to subtropical waters worldwide. Dudresnaya verticillata and D. crassa have been reported for the Azorean islands in species checklists since 1992 and 2001, respectively. The present work is the first taxonomic study of representatives of the genus in this archipelago. The Azorean specimens previously identified as Dudresnaya verticillata are here recognized as a new species based on four molecular markers (nuclear LSU, mitochondrial COI, and plastid rbcL and UPA). Genetic differences between the new taxon and its closest related species are: COI – 9,81%; rbcL – 7,35%; UPA – 3,44%; and LSU – 1,04%. The morphological and reproductive diagnostic features of the new species are described. Gametophytes are dioecious. Male plants present abundant spermatia borne on the outer cortical cells. Female plants bear 3-4 celled carpogonial branches and auxiliary cell branches borne at the base of cortical branches close to the axial filaments. Carposporophytes comprise numerous carpospores, forcing the surrounding cortical filaments to spread apart as they grow. Tetrasporophytes were not observed. Relationships among species of Dudresnaya are explored.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGabriel, D., Neto, A. I., & Fredericq, S. (2021). Certified by nature: a new species of the gelatinous alga Dudresnaya (Dumontiaceae, Rhodophyta) from the Azores. In: Spring Seminar BioIsle - Book of Abstracts, Ponta Delgada (Portugal), p. 26.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.3/6983
dc.language.isoengpt_PT
dc.subjectAzorespt_PT
dc.subjectEndemismpt_PT
dc.subjectPhylogenypt_PT
dc.subjectRhodophytapt_PT
dc.subjectSeaweedpt_PT
dc.titleCertified by nature: a new species of the gelatinous alga Dudresnaya (Dumontiaceae, Rhodophyta) from the Azorespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePonta Delgada, Portugalpt_PT
oaire.citation.startPage26pt_PT
oaire.citation.titleSpring Seminar BioIsle 2021pt_PT
person.familyNamede Lima Gabriel
person.familyNameNeto
person.familyNameFredericq
person.givenNameDaniela
person.givenNameAna
person.givenNameSuzanne
person.identifier.ciencia-id3B19-E72E-7E5F
person.identifier.ciencia-idF412-5515-7324
person.identifier.orcid0000-0002-0362-6274
person.identifier.orcid0000-0003-0708-5636
person.identifier.orcid0000-0002-2420-1902
person.identifier.ridC-1505-2010
person.identifier.scopus-author-id7102618919
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication25cf77b5-7870-4c5d-85dd-9497358045db
relation.isAuthorOfPublication5a4f5ed1-4800-4d46-932d-b4063eaa8d14
relation.isAuthorOfPublication2ea7128f-7b21-461d-bac7-0cba13df4b75
relation.isAuthorOfPublication.latestForDiscovery5a4f5ed1-4800-4d46-932d-b4063eaa8d14

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