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

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...

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Detalles Bibliográficos
Autores principales: Steciow, Mónica Mirta, Lara, Enrique, Pillonel, Amandine, Pelizza, Sebastián Alberto, Lestani, Eduardo Ariel, Rossi, Gustavo Carlos, Belbahri, Lassaad
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93257
https://ri.conicet.gov.ar/handle/11336/10948
https://imafungus.biomedcentral.com/articles/10.5598/imafungus.2013.04.02.02
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93257
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
spellingShingle Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
Steciow, Mónica Mirta
Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
topic_facet Biología
Oomycetes
Phylogeny
Saprolegniales
Internal transcribed spacer (ITS)
Large subunit (LSU) rRNA
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.
format Articulo
Articulo
author Steciow, Mónica Mirta
Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
author_facet Steciow, Mónica Mirta
Lara, Enrique
Pillonel, Amandine
Pelizza, Sebastián Alberto
Lestani, Eduardo Ariel
Rossi, Gustavo Carlos
Belbahri, Lassaad
author_sort Steciow, Mónica Mirta
title Incipient loss of flagella in the genus Geolegnia: the emergence of a new clade within Leptolegnia?
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?
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/93257
https://ri.conicet.gov.ar/handle/11336/10948
https://imafungus.biomedcentral.com/articles/10.5598/imafungus.2013.04.02.02
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