Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta)
The Cyanidiophyceae are a group of unicellular organisms that diverged from ancestral red algae around 1.3 billion years ago. Present-day species are restricted to hot springs and geothermal habitats from around the world. Because of discontinuous geothermal environments, the distribution patterns a...
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Online Access: | http://hdl.handle.net/11588/592851 https://doi.org/10.2216/14-032.1 |
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ftunivnapoliiris:oai:www.iris.unina.it:11588/592851 2024-04-14T08:13:24+00:00 Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) Ciniglia C. Eun Chan Yang Iovinella M. Vitale L. Hwan Su Yoon POLLIO, ANTONINO PINTO, GABRIELE Ciniglia, C. Eun Chan, Yang Pollio, Antonino Pinto, Gabriele Iovinella, M. Vitale, L. Hwan Su, Yoon 2014 http://hdl.handle.net/11588/592851 https://doi.org/10.2216/14-032.1 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000347965000002 volume:53 issue:6 firstpage:542 lastpage:551 numberofpages:10 journal:PHYCOLOGIA http://hdl.handle.net/11588/592851 doi:10.2216/14-032.1 cyanidiophyceae dispersal Galdieria sulphuraria population structure info:eu-repo/semantics/article 2014 ftunivnapoliiris https://doi.org/10.2216/14-032.1 2024-03-21T18:50:43Z The Cyanidiophyceae are a group of unicellular organisms that diverged from ancestral red algae around 1.3 billion years ago. Present-day species are restricted to hot springs and geothermal habitats from around the world. Because of discontinuous geothermal environments, the distribution patterns and dispersal modes of the cyanidiophycean species are poorly understood. Iceland is the third largest island in the Atlantic Ocean and has intense underground volcanic activity that generates broad hydrothermal areas with different ecological conditions that are excellent for thermoacidophilic microfloral development. We analyzed populations to address the Icelandic cyanidiophycean biodiversity and dispersal. A global rbcL phylogeny showed two main populations inhabiting Iceland, Galdieria sulphuraria and G. maxima. Their areas of distribution are not completely superimposed because they coexisted only in New Zealand, Kamchatka (Russia), Japan, and Iceland. Because of the strong monophyly of Icelandic species with Japanese and Russian species, we hypothesized an origin and dispersion of Icelandic G. suphuraria and G. maxima from northeastern Asia. On the basis of network analysis of rbcL haplotypes, it is likely that the southwestern region of Iceland is the diversity center of both G. sulphuraria and G. maxima. Article in Journal/Newspaper Iceland Kamchatka IRIS Università degli Studi di Napoli Federico II New Zealand Phycologia 53 6 542 551 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
cyanidiophyceae dispersal Galdieria sulphuraria population structure |
spellingShingle |
cyanidiophyceae dispersal Galdieria sulphuraria population structure Ciniglia C. Eun Chan Yang Iovinella M. Vitale L. Hwan Su Yoon POLLIO, ANTONINO PINTO, GABRIELE Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
topic_facet |
cyanidiophyceae dispersal Galdieria sulphuraria population structure |
description |
The Cyanidiophyceae are a group of unicellular organisms that diverged from ancestral red algae around 1.3 billion years ago. Present-day species are restricted to hot springs and geothermal habitats from around the world. Because of discontinuous geothermal environments, the distribution patterns and dispersal modes of the cyanidiophycean species are poorly understood. Iceland is the third largest island in the Atlantic Ocean and has intense underground volcanic activity that generates broad hydrothermal areas with different ecological conditions that are excellent for thermoacidophilic microfloral development. We analyzed populations to address the Icelandic cyanidiophycean biodiversity and dispersal. A global rbcL phylogeny showed two main populations inhabiting Iceland, Galdieria sulphuraria and G. maxima. Their areas of distribution are not completely superimposed because they coexisted only in New Zealand, Kamchatka (Russia), Japan, and Iceland. Because of the strong monophyly of Icelandic species with Japanese and Russian species, we hypothesized an origin and dispersion of Icelandic G. suphuraria and G. maxima from northeastern Asia. On the basis of network analysis of rbcL haplotypes, it is likely that the southwestern region of Iceland is the diversity center of both G. sulphuraria and G. maxima. |
author2 |
Ciniglia, C. Eun Chan, Yang Pollio, Antonino Pinto, Gabriele Iovinella, M. Vitale, L. Hwan Su, Yoon |
format |
Article in Journal/Newspaper |
author |
Ciniglia C. Eun Chan Yang Iovinella M. Vitale L. Hwan Su Yoon POLLIO, ANTONINO PINTO, GABRIELE |
author_facet |
Ciniglia C. Eun Chan Yang Iovinella M. Vitale L. Hwan Su Yoon POLLIO, ANTONINO PINTO, GABRIELE |
author_sort |
Ciniglia C. |
title |
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
title_short |
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
title_full |
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
title_fullStr |
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
title_full_unstemmed |
Cyanidiophyceae in Iceland: plastid rbcL gene elucidates origin and dispersal of extremophilic Galdieria sulphuraria and G. maxima (Galdieriaceae, Rhodophyta) |
title_sort |
cyanidiophyceae in iceland: plastid rbcl gene elucidates origin and dispersal of extremophilic galdieria sulphuraria and g. maxima (galdieriaceae, rhodophyta) |
publishDate |
2014 |
url |
http://hdl.handle.net/11588/592851 https://doi.org/10.2216/14-032.1 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Iceland Kamchatka |
genre_facet |
Iceland Kamchatka |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000347965000002 volume:53 issue:6 firstpage:542 lastpage:551 numberofpages:10 journal:PHYCOLOGIA http://hdl.handle.net/11588/592851 doi:10.2216/14-032.1 |
op_doi |
https://doi.org/10.2216/14-032.1 |
container_title |
Phycologia |
container_volume |
53 |
container_issue |
6 |
container_start_page |
542 |
op_container_end_page |
551 |
_version_ |
1796311385009815552 |