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dc.contributor.author
Aguilera, Anabella
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dc.contributor.author
Berrendero Gómez, Esther
dc.contributor.author
Kaštovský, Jan
dc.contributor.author
Echenique, Ricardo Omar
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dc.contributor.author
Salerno, Graciela Lidia
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dc.date.available
2019-11-08T13:35:25Z
dc.date.issued
2018-02
dc.identifier.citation
Aguilera, Anabella; Berrendero Gómez, Esther; Kaštovský, Jan; Echenique, Ricardo Omar; Salerno, Graciela Lidia; The polyphasic analysis of two native Raphidiopsis isolates supports the unification of the genera Raphidiopsis and Cylindrospermopsis (Nostocales, Cyanobacteria); International Phycological Society; Phycologia; 57; 2; 2-2018; 130-146
dc.identifier.issn
0031-8884
dc.identifier.uri
http://hdl.handle.net/11336/88292
dc.description.abstract
Raphidiopsis and Cylindrospermopsis are planktic, freshwater bloom-forming cyanobacteria of great concern to human health due to the production of potent cyanotoxins. The presence (in Cylindrospermopsis) or absence (in Raphidiopsis) of heterocytes is the traditional character used to distinguish them. This has led to misidentifications and to questions about the validity of the genus Raphidiopsis. We studied two strains of R. mediterranea isolated from Argentinean shallow lakes using a polyphasic approach that included the morphological description of the natural populations and their ultrastructural, physiological and molecular characterisation. Heterocyte differentiation was not observed in the field or in cultures of R. mediterranea submitted to nitrogen deprivation. These results support the occurrence of stable native populations of R. mediterranea without heterocytes, which would not be a part of the Cylindrospermopsis complex life cycle. Based on 16S rRNA, 16S–23S ITS, and cpcBA-IGS sequences, these two genera are virtually identical. Thus, strains of Raphidiopsis and Cylindrospermopsis make up a monophyletic lineage in all phylogenetic reconstructions. Furthermore, the 16S–23S ITS secondary structure provided further evidence that these two genera cannot be separated. The intermixed position in the trees points to several losses of heterocytes during the evolution of these cyanobacteria. We conclude that these two genera should not be regarded as separate and distinct generic units and propose their unification under the name Raphidiopsis, respecting the principle of priority. Accordingly, we revisited and emended the description of Raphidiopsis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
International Phycological Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CYLINDROSPERMOPSIS RACIBORSKII
dc.subject
MOLECULAR TAXONOMY
dc.subject
POLYPHASIC APPROACH
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RAPHIDIOPSIS ARGENTINEAN STRAINS
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
The polyphasic analysis of two native Raphidiopsis isolates supports the unification of the genera Raphidiopsis and Cylindrospermopsis (Nostocales, Cyanobacteria)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-22T15:42:30Z
dc.journal.volume
57
dc.journal.number
2
dc.journal.pagination
130-146
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Lawrence
dc.description.fil
Fil: Aguilera, Anabella. Fundación para Investigaciones Biológicas Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina
dc.description.fil
Fil: Berrendero Gómez, Esther. University of South Bohemia; República Checa
dc.description.fil
Fil: Kaštovský, Jan. University of South Bohemia; República Checa
dc.description.fil
Fil: Echenique, Ricardo Omar. Facultad de Ciencias Naturales y Museo, Universidad Nacional de la Plata; Argentina
dc.description.fil
Fil: Salerno, Graciela Lidia. Fundación para Investigaciones Biológicas Aplicadas; Argentina
dc.journal.title
Phycologia
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.2216/17-2.1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2216/17-2.1
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