Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon
Penna, Antonella . et. al.-- 15 pages, 25 figures, 3 tables, supplementary material in http://www.tandfonline.com/doi/suppl/10.1080/09670260701783730#tabModule A phylogenetic analysis of the genus Alexandrium, including both the most common and rare species from coastal areas of the Mediterranean Se...
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ftcsic:oai:digital.csic.es:10261/107550 2024-02-11T10:06:42+01:00 Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon Penna, Antonella Masó, Mercedes Garcés, Esther Vila, Magda Vernesi, Cristiano 2008-08 http://hdl.handle.net/10261/107550 https://doi.org/10.1080/09670260701783730 unknown British Phycological Society doi:10.1080/09670260701783730 issn: 0967-0262 e-issn: 469-4433 European Journal of Phycology 43(2): 163-178 (2008) http://hdl.handle.net/10261/107550 none Alexandrium ITS Taxonomy Phylogeny Ribosomal genes Mediterranean Sea artículo http://purl.org/coar/resource_type/c_6501 2008 ftcsic https://doi.org/10.1080/09670260701783730 2024-01-16T10:03:45Z Penna, Antonella . et. al.-- 15 pages, 25 figures, 3 tables, supplementary material in http://www.tandfonline.com/doi/suppl/10.1080/09670260701783730#tabModule A phylogenetic analysis of the genus Alexandrium, including both the most common and rare species from coastal areas of the Mediterranean Sea was carried out. Nucleotide sequences of 5.8 S gene and Internal Transcribed Spacer regions of the rRNA operon were examined and analysed together with isolates of Alexandrium spp. from elsewhere in the world. These rDNA ribosomal markers were useful in delineating the phylogenetic position of species in the genus, as well as in determining relationships among isolates within each species collected from different localities. Results of phylogeographical analyses within the 'Alexandrium tamarense' species complex identified three lineages in the Mediterranean Sea: the Mediterranean (ME), Western European (WE) and Temperate Asian (TA) clades. The phylogenetic grouping of the isolates is consistent with the ribotype clades, but not with the morpho-species that constitute the complex. Additional non-toxic isolates were included in the ME clade. The NA (North Atlantic) clade is the fourth group within the 'Alexandrium tamarense' species complex identified by phylogenetic analyses. Based on its higher genetic diversity and phylogeographical relationships, it can be hypothesized that the NA clade represents the ancestral group of the 'Alexandrium tamarense' species complex. Alexandrium minutum isolates of the NW Mediterranean clustered with strains from Brittany and Australia. Alexandrium minutum constituted a sister clade of A. tamutum, which is another species strongly associated with the Mediterranean area. Another typical Mediterranean species, A. taylori, was placed as a sister clade of A. pseudogoniaulax by the phylogenetic analysis. Finally, the phylogenetic relationships of some Alexandrium morpho-species that were infrequently observed in the Mediterranean Sea have been resolved. © 2008 British Phycological ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) European Journal of Phycology 43 2 163 178 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Alexandrium ITS Taxonomy Phylogeny Ribosomal genes Mediterranean Sea |
spellingShingle |
Alexandrium ITS Taxonomy Phylogeny Ribosomal genes Mediterranean Sea Penna, Antonella Masó, Mercedes Garcés, Esther Vila, Magda Vernesi, Cristiano Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
topic_facet |
Alexandrium ITS Taxonomy Phylogeny Ribosomal genes Mediterranean Sea |
description |
Penna, Antonella . et. al.-- 15 pages, 25 figures, 3 tables, supplementary material in http://www.tandfonline.com/doi/suppl/10.1080/09670260701783730#tabModule A phylogenetic analysis of the genus Alexandrium, including both the most common and rare species from coastal areas of the Mediterranean Sea was carried out. Nucleotide sequences of 5.8 S gene and Internal Transcribed Spacer regions of the rRNA operon were examined and analysed together with isolates of Alexandrium spp. from elsewhere in the world. These rDNA ribosomal markers were useful in delineating the phylogenetic position of species in the genus, as well as in determining relationships among isolates within each species collected from different localities. Results of phylogeographical analyses within the 'Alexandrium tamarense' species complex identified three lineages in the Mediterranean Sea: the Mediterranean (ME), Western European (WE) and Temperate Asian (TA) clades. The phylogenetic grouping of the isolates is consistent with the ribotype clades, but not with the morpho-species that constitute the complex. Additional non-toxic isolates were included in the ME clade. The NA (North Atlantic) clade is the fourth group within the 'Alexandrium tamarense' species complex identified by phylogenetic analyses. Based on its higher genetic diversity and phylogeographical relationships, it can be hypothesized that the NA clade represents the ancestral group of the 'Alexandrium tamarense' species complex. Alexandrium minutum isolates of the NW Mediterranean clustered with strains from Brittany and Australia. Alexandrium minutum constituted a sister clade of A. tamutum, which is another species strongly associated with the Mediterranean area. Another typical Mediterranean species, A. taylori, was placed as a sister clade of A. pseudogoniaulax by the phylogenetic analysis. Finally, the phylogenetic relationships of some Alexandrium morpho-species that were infrequently observed in the Mediterranean Sea have been resolved. © 2008 British Phycological ... |
format |
Article in Journal/Newspaper |
author |
Penna, Antonella Masó, Mercedes Garcés, Esther Vila, Magda Vernesi, Cristiano |
author_facet |
Penna, Antonella Masó, Mercedes Garcés, Esther Vila, Magda Vernesi, Cristiano |
author_sort |
Penna, Antonella |
title |
Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
title_short |
Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
title_full |
Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
title_fullStr |
Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
title_full_unstemmed |
Phylogenetic relationships among the Mediterranean Alexandrium (Dinophyceae) species based on sequences of 5.8S gene and Internal Transcript Spacers of the rRNA operon |
title_sort |
phylogenetic relationships among the mediterranean alexandrium (dinophyceae) species based on sequences of 5.8s gene and internal transcript spacers of the rrna operon |
publisher |
British Phycological Society |
publishDate |
2008 |
url |
http://hdl.handle.net/10261/107550 https://doi.org/10.1080/09670260701783730 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1080/09670260701783730 issn: 0967-0262 e-issn: 469-4433 European Journal of Phycology 43(2): 163-178 (2008) http://hdl.handle.net/10261/107550 |
op_rights |
none |
op_doi |
https://doi.org/10.1080/09670260701783730 |
container_title |
European Journal of Phycology |
container_volume |
43 |
container_issue |
2 |
container_start_page |
163 |
op_container_end_page |
178 |
_version_ |
1790604583071907840 |