Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia

Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia

8 pages, 2 figures, 1 table

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Main Authors: Shalchian-Tabrizi, Kamran, Kauserud, Håvard, Massana, Ramon, Klaveness, Dag, Jakobsen, Kjetill S.
Format: artículo biblioteca
Language:English
Published: Elsevier 2007-04
Subjects:18S rDNA, Environmental sequences, Telonema, Telonemia, Phylogeny,
Online Access:http://hdl.handle.net/10261/26734
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spelling dig-icm-es-10261-267342020-11-12T10:07:22Z Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia Shalchian-Tabrizi, Kamran Kauserud, Håvard Massana, Ramon Klaveness, Dag Jakobsen, Kjetill S. 18S rDNA Environmental sequences Telonema Telonemia Phylogeny 8 pages, 2 figures, 1 table Telonemia has recently been described as a new eukaryotic phylum with uncertain evolutionary origin. So far, only two Telonemia species, Telonema subtilis and Telonema antarcticum, have been described, but there are substantial variations in size and morphology among Telonema isolates and field observations, indicating a hidden diversity of Telonemia-like species and populations. In this study, we investigated the diversity and the global distribution of this group by analyzing 18S rDNA sequences from marine environmental clone libraries published in GenBank as well as several unpublished sequences from the Indian Ocean. Phylogenetic analyses of the identified sequences suggest that the Telonemia phylum includes several undescribed 18S rDNA phylotypes, probably corresponding to a number of different species and/or populations. The Telonemia phylotypes form two main groups, here referred to as Telonemia Groups 1 and 2. Some of the closely related sequences originate from separate oceans, indicating worldwide distributions of various Telonemia phylotypes, while other phylotypes seem to have limited geographical distribution. Further investigations of the evolutionary relationships within Telonemia should be conducted on isolated cultures of Telonema-like strains using multi-locus sequencing and morphological data This work was supported by the Norwegian Research Council to KSJ (No. 166555 and 159822) and a grant from the French GIS (PICOCEAN) Peer reviewed 2010-08-02T09:47:15Z 2010-08-02T09:47:15Z 2007-04 artículo http://purl.org/coar/resource_type/c_6501 Protist 158(2): 173-180 (2007) 1434-4610 http://hdl.handle.net/10261/26734 10.1016/j.protis.2006.10.003 en https://doi.org/10.1016/j.protis.2006.10.003 none 5867 bytes application/pdf Elsevier
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic 18S rDNA
Environmental sequences
Telonema
Telonemia
Phylogeny
18S rDNA
Environmental sequences
Telonema
Telonemia
Phylogeny
spellingShingle 18S rDNA
Environmental sequences
Telonema
Telonemia
Phylogeny
18S rDNA
Environmental sequences
Telonema
Telonemia
Phylogeny
Shalchian-Tabrizi, Kamran
Kauserud, Håvard
Massana, Ramon
Klaveness, Dag
Jakobsen, Kjetill S.
Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
description 8 pages, 2 figures, 1 table
format artículo
topic_facet 18S rDNA
Environmental sequences
Telonema
Telonemia
Phylogeny
author Shalchian-Tabrizi, Kamran
Kauserud, Håvard
Massana, Ramon
Klaveness, Dag
Jakobsen, Kjetill S.
author_facet Shalchian-Tabrizi, Kamran
Kauserud, Håvard
Massana, Ramon
Klaveness, Dag
Jakobsen, Kjetill S.
author_sort Shalchian-Tabrizi, Kamran
title Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
title_short Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
title_full Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
title_fullStr Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
title_full_unstemmed Analysis of Environmental 18S Ribosomal RNA Sequences reveals Unknown Diversity of the Cosmopolitan Phylum Telonemia
title_sort analysis of environmental 18s ribosomal rna sequences reveals unknown diversity of the cosmopolitan phylum telonemia
publisher Elsevier
publishDate 2007-04
url http://hdl.handle.net/10261/26734
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AT massanaramon analysisofenvironmental18sribosomalrnasequencesrevealsunknowndiversityofthecosmopolitanphylumtelonemia
AT klavenessdag analysisofenvironmental18sribosomalrnasequencesrevealsunknowndiversityofthecosmopolitanphylumtelonemia
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