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Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species

Aquatic hyphomycetes occur worldwide on a wide range of plant substrates decomposing in freshwaters, and are known to play a key role in organic matter turnover. The presumed worldwide distribution of many aquatic hyphomycete species has been based on morphology-based taxonomy and identification, wh...

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Autores principales: Duarte, Sofia, Seena, Sahadevan, Bärlocher, Felix, Cássio, Fernanda, Pascoal, Cláudia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445450/
https://www.ncbi.nlm.nih.gov/pubmed/23028909
http://dx.doi.org/10.1371/journal.pone.0045289
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author Duarte, Sofia
Seena, Sahadevan
Bärlocher, Felix
Cássio, Fernanda
Pascoal, Cláudia
author_facet Duarte, Sofia
Seena, Sahadevan
Bärlocher, Felix
Cássio, Fernanda
Pascoal, Cláudia
author_sort Duarte, Sofia
collection PubMed
description Aquatic hyphomycetes occur worldwide on a wide range of plant substrates decomposing in freshwaters, and are known to play a key role in organic matter turnover. The presumed worldwide distribution of many aquatic hyphomycete species has been based on morphology-based taxonomy and identification, which may overlook cryptic species, and mask global-scale biogeographical patterns. This might be circumvented by using DNA sequence data. The internal transcribed spacer (ITS) region from rDNA was recently designated as the most suitable barcode for fungal identification. In this study, we generated ITS barcodes of 130 isolates belonging to 6 aquatic hyphomycete species (Anguillospora filiformis, Flagellospora penicillioides, Geniculospora grandis, Lunulospora curvula, Tetrachaetum elegans and Tricladium chaetocladium), and collected from streams of Southwest Europe (86 isolates) and East Australia (44 isolates). European and Australian populations of 4 species (A. filiformis, F. penicillioides, G. grandis and T. elegans) grouped into different clades, and molecular diversity indices supported significant differentiation. Continents did not share haplotypes, except for T. chaetocladium. Overall results show substantial population diversity for all tested species and suggests that the biogeography of aquatic hyphomycetes may be species-specific.
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spelling pubmed-34454502012-10-01 Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species Duarte, Sofia Seena, Sahadevan Bärlocher, Felix Cássio, Fernanda Pascoal, Cláudia PLoS One Research Article Aquatic hyphomycetes occur worldwide on a wide range of plant substrates decomposing in freshwaters, and are known to play a key role in organic matter turnover. The presumed worldwide distribution of many aquatic hyphomycete species has been based on morphology-based taxonomy and identification, which may overlook cryptic species, and mask global-scale biogeographical patterns. This might be circumvented by using DNA sequence data. The internal transcribed spacer (ITS) region from rDNA was recently designated as the most suitable barcode for fungal identification. In this study, we generated ITS barcodes of 130 isolates belonging to 6 aquatic hyphomycete species (Anguillospora filiformis, Flagellospora penicillioides, Geniculospora grandis, Lunulospora curvula, Tetrachaetum elegans and Tricladium chaetocladium), and collected from streams of Southwest Europe (86 isolates) and East Australia (44 isolates). European and Australian populations of 4 species (A. filiformis, F. penicillioides, G. grandis and T. elegans) grouped into different clades, and molecular diversity indices supported significant differentiation. Continents did not share haplotypes, except for T. chaetocladium. Overall results show substantial population diversity for all tested species and suggests that the biogeography of aquatic hyphomycetes may be species-specific. Public Library of Science 2012-09-18 /pmc/articles/PMC3445450/ /pubmed/23028909 http://dx.doi.org/10.1371/journal.pone.0045289 Text en © 2012 Duarte et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Duarte, Sofia
Seena, Sahadevan
Bärlocher, Felix
Cássio, Fernanda
Pascoal, Cláudia
Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title_full Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title_fullStr Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title_full_unstemmed Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title_short Preliminary Insights into the Phylogeography of Six Aquatic Hyphomycete Species
title_sort preliminary insights into the phylogeography of six aquatic hyphomycete species
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445450/
https://www.ncbi.nlm.nih.gov/pubmed/23028909
http://dx.doi.org/10.1371/journal.pone.0045289
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