Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens

The <i>Saprolegnia-Achlya</i> clade comprises species of major environmental and economic importance due to their negative impact on aquaculture and aquatic ecosystems by threatening fishes, amphibians, and crustaceans. However, their taxonomy and phylogenetic relationships remain unreso...

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Autores principales: Steciow, Mónica Mirta, Lara, Enrique, Paul, Christophe, Pillonel, Amandine, Belbahri, Lassaad
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Naturales
barcoding
ITS
LSU rRNA
Morphology
Newbya
SSU rRNA
Water moulds
Zoospore discharge
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85044
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85044
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
barcoding
ITS
LSU rRNA
Morphology
Newbya
SSU rRNA
Water moulds
Zoospore discharge
spellingShingle Ciencias Naturales
barcoding
ITS
LSU rRNA
Morphology
Newbya
SSU rRNA
Water moulds
Zoospore discharge
Steciow, Mónica Mirta
Lara, Enrique
Paul, Christophe
Pillonel, Amandine
Belbahri, Lassaad
Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
topic_facet Ciencias Naturales
barcoding
ITS
LSU rRNA
Morphology
Newbya
SSU rRNA
Water moulds
Zoospore discharge
description The <i>Saprolegnia-Achlya</i> clade comprises species of major environmental and economic importance due to their negative impact on aquaculture and aquatic ecosystems by threatening fishes, amphibians, and crustaceans. However, their taxonomy and phylogenetic relationships remain unresolved and suffer from many inconsistencies, which is a major obstacle to the widespread application of molecular barcoding to identify pathogenic strains with quarantine implications. We assessed phylogenetic relationships of major genera using three commonly used markers (ITS, SSU rRNA, and LSU rRNA). A consensus tree of the three genes provided support for nine clades encompassing eleven documented genera and a new clade (SAP1) that has not been described morphologically. In the course of this study, we isolated a new species, <i>Newbya dichotoma</i> sp. nov., which provided the only culture available for this genus. In parallel, we attempted to summarize the evolution of traits in the different genera, but their successive reversals rendered the inference of ancestral states impossible. This highlights even more the importance of a bar-coding strategy for saprolegniacean parasite detection and monitoring.
format Articulo
Articulo
author Steciow, Mónica Mirta
Lara, Enrique
Paul, Christophe
Pillonel, Amandine
Belbahri, Lassaad
author_facet Steciow, Mónica Mirta
Lara, Enrique
Paul, Christophe
Pillonel, Amandine
Belbahri, Lassaad
author_sort Steciow, Mónica Mirta
title Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
title_short Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
title_full Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
title_fullStr Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
title_full_unstemmed Multiple barcode assessment within the Saprolegnia-Achlya clade (Saprolegniales, Oomycota, Straminipila) brings order in a neglected group of pathogens
title_sort multiple barcode assessment within the saprolegnia-achlya clade (saprolegniales, oomycota, straminipila) brings order in a neglected group of pathogens
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85044
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