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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2012
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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. |
format | Online Article Text |
id | pubmed-3445450 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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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