Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?

Autores
Steciow, Mónica Mirta; Lara, Enrique; Pillonel, Amandine; Pelizza, Sebastián Alberto; Lestani, Eduardo Ariel; Rossi, Gustavo Carlos; Belbahri, Lassaad
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The genus Geolegnia represents a poorly documented group of saprolegnialean oomycetes isolated from soils as free-living organisms. Although it is morphologically similar to the facultative parasitic genus Leptolegnia, Geolegnia presents the uncommon property of having lost a flagellate stage in its lifecycle. Based on ITS and large subunit (LSU) rRNA sequence data, we show Geolegnia to be basal to Leptolegnia, and also introduce Geolegnia helicoides sp. nov. Using sequence data of Leptolegnia available in GenBank, supplemented by data derived from culture collections, we show that Geolegnia is nested within Leptolegnia, a genus characterised by its “conventional” biflagellate life cycle. The emergence of Geolegnia is therefore seen as a recent event, and we suggest here an evolutionary context where this loss might have been advantageous. Based on this study, Leptolegnia remains paraphyletic, awaiting the redefinition of genera in this complex.
Instituto de Botánica "Dr. Carlos Spegazzini"
Centro de Estudios Parasitológicos y de Vectores
Materia
Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/93257
Acceder
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network_name_str SEDICI (UNLP)
spelling Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?Steciow, Mónica MirtaLara, EnriquePillonel, AmandinePelizza, Sebastián AlbertoLestani, Eduardo ArielRossi, Gustavo CarlosBelbahri, LassaadBiologíaOomycetesPhylogenySaprolegnialesInternal transcribed spacer (ITS)Large subunit (LSU) rRNAThe genus Geolegnia represents a poorly documented group of saprolegnialean oomycetes isolated from soils as free-living organisms. Although it is morphologically similar to the facultative parasitic genus Leptolegnia, Geolegnia presents the uncommon property of having lost a flagellate stage in its lifecycle. Based on ITS and large subunit (LSU) rRNA sequence data, we show Geolegnia to be basal to Leptolegnia, and also introduce Geolegnia helicoides sp. nov. Using sequence data of Leptolegnia available in GenBank, supplemented by data derived from culture collections, we show that Geolegnia is nested within Leptolegnia, a genus characterised by its “conventional” biflagellate life cycle. The emergence of Geolegnia is therefore seen as a recent event, and we suggest here an evolutionary context where this loss might have been advantageous. Based on this study, Leptolegnia remains paraphyletic, awaiting the redefinition of genera in this complex.Instituto de Botánica "Dr. Carlos Spegazzini"Centro de Estudios Parasitológicos y de Vectores2013-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf169-175http://sedici.unlp.edu.ar/handle/10915/93257enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/10948info:eu-repo/semantics/altIdentifier/url/https://imafungus.biomedcentral.com/articles/10.5598/imafungus.2013.04.02.02info:eu-repo/semantics/altIdentifier/doi/10.5598/imafungus.2013.04.02.02info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:00:07Zoai:sedici.unlp.edu.ar:10915/93257Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:00:07.925SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
title Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
spellingShingle Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
Steciow, Mónica Mirta
Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
title_short Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
title_full Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
title_fullStr Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
title_full_unstemmed Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
title_sort Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
dc.creator.none.fl_str_mv Steciow, Mónica Mirta
Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
author Steciow, Mónica Mirta
author_facet Steciow, Mónica Mirta
Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
author_role author
author2 Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
topic Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
dc.description.none.fl_txt_mv The genus Geolegnia represents a poorly documented group of saprolegnialean oomycetes isolated from soils as free-living organisms. Although it is morphologically similar to the facultative parasitic genus Leptolegnia, Geolegnia presents the uncommon property of having lost a flagellate stage in its lifecycle. Based on ITS and large subunit (LSU) rRNA sequence data, we show Geolegnia to be basal to Leptolegnia, and also introduce Geolegnia helicoides sp. nov. Using sequence data of Leptolegnia available in GenBank, supplemented by data derived from culture collections, we show that Geolegnia is nested within Leptolegnia, a genus characterised by its “conventional” biflagellate life cycle. The emergence of Geolegnia is therefore seen as a recent event, and we suggest here an evolutionary context where this loss might have been advantageous. Based on this study, Leptolegnia remains paraphyletic, awaiting the redefinition of genera in this complex.
Instituto de Botánica "Dr. Carlos Spegazzini"
Centro de Estudios Parasitológicos y de Vectores
description The genus Geolegnia represents a poorly documented group of saprolegnialean oomycetes isolated from soils as free-living organisms. Although it is morphologically similar to the facultative parasitic genus Leptolegnia, Geolegnia presents the uncommon property of having lost a flagellate stage in its lifecycle. Based on ITS and large subunit (LSU) rRNA sequence data, we show Geolegnia to be basal to Leptolegnia, and also introduce Geolegnia helicoides sp. nov. Using sequence data of Leptolegnia available in GenBank, supplemented by data derived from culture collections, we show that Geolegnia is nested within Leptolegnia, a genus characterised by its “conventional” biflagellate life cycle. The emergence of Geolegnia is therefore seen as a recent event, and we suggest here an evolutionary context where this loss might have been advantageous. Based on this study, Leptolegnia remains paraphyletic, awaiting the redefinition of genera in this complex.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/93257
url http://sedici.unlp.edu.ar/handle/10915/93257
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/10948
info:eu-repo/semantics/altIdentifier/url/https://imafungus.biomedcentral.com/articles/10.5598/imafungus.2013.04.02.02
info:eu-repo/semantics/altIdentifier/doi/10.5598/imafungus.2013.04.02.02
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
169-175
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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