Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica
The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic and molecular ap...
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ftnerc:oai:nora.nerc.ac.uk:15172 2023-05-15T13:45:11+02:00 Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica Fernandez-Carazo, Rafael Hodgson, Dominic A. Convey, Peter Wilmotte, Annick 2011 http://nora.nerc.ac.uk/id/eprint/15172/ http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6941.2011.01132.x/abstract unknown Wiley-Blackwell Fernandez-Carazo, Rafael; Hodgson, Dominic A. orcid:0000-0002-3841-3746 Convey, Peter orcid:0000-0001-8497-9903 Wilmotte, Annick. 2011 Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica. FEMS Microbiology Ecology, 77 (3). 503-517. https://doi.org/10.1111/j.1574-6941.2011.01132.x <https://doi.org/10.1111/j.1574-6941.2011.01132.x> Biology and Microbiology Publication - Article PeerReviewed 2011 ftnerc https://doi.org/10.1111/j.1574-6941.2011.01132.x 2023-02-04T19:29:44Z The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic and molecular approaches to examine the cyanobacterial diversity of biotopes at two inland continental Antarctic sites (80-82 degrees S). These are among the most southerly locations where freshwater-related ecosystems are present. The results showed a low cyanobacterial diversity, with only 3-7 operational taxonomic units (OTUs) per sample obtained by a combination of strain isolations, clone libraries and denaturing gradient gel electrophoresis based on 16S rRNA genes. One OTU was potentially endemic to Antarctica and is present in several regions of the continent. Four OTUs were shared by the samples from Forlidas Pond and the surrounding terrestrial mats. Only one OTU, but no internal transcribed spacer (ITS) sequences, was common to Forlidas Pond and Lundstrom Lake. The ITS sequences were shown to further discriminate different genotypes within the OTUs. ITS sequences from Antarctic locations appear to be more closely related to each other than to non-Antarctic sequences. Future research in inland continental Antarctica will shed more light on the geographical distribution and evolutionary isolation of cyanobacteria in these extreme habitats. Article in Journal/Newspaper Antarc* Antarctic Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Shackleton Transantarctic Mountains Shackleton Range ENVELOPE(-26.000,-26.000,-80.833,-80.833) Forlidas Pond ENVELOPE(-51.318,-51.318,-82.453,-82.453) FEMS Microbiology Ecology 77 3 503 517 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology |
spellingShingle |
Biology and Microbiology Fernandez-Carazo, Rafael Hodgson, Dominic A. Convey, Peter Wilmotte, Annick Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
topic_facet |
Biology and Microbiology |
description |
The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic and molecular approaches to examine the cyanobacterial diversity of biotopes at two inland continental Antarctic sites (80-82 degrees S). These are among the most southerly locations where freshwater-related ecosystems are present. The results showed a low cyanobacterial diversity, with only 3-7 operational taxonomic units (OTUs) per sample obtained by a combination of strain isolations, clone libraries and denaturing gradient gel electrophoresis based on 16S rRNA genes. One OTU was potentially endemic to Antarctica and is present in several regions of the continent. Four OTUs were shared by the samples from Forlidas Pond and the surrounding terrestrial mats. Only one OTU, but no internal transcribed spacer (ITS) sequences, was common to Forlidas Pond and Lundstrom Lake. The ITS sequences were shown to further discriminate different genotypes within the OTUs. ITS sequences from Antarctic locations appear to be more closely related to each other than to non-Antarctic sequences. Future research in inland continental Antarctica will shed more light on the geographical distribution and evolutionary isolation of cyanobacteria in these extreme habitats. |
format |
Article in Journal/Newspaper |
author |
Fernandez-Carazo, Rafael Hodgson, Dominic A. Convey, Peter Wilmotte, Annick |
author_facet |
Fernandez-Carazo, Rafael Hodgson, Dominic A. Convey, Peter Wilmotte, Annick |
author_sort |
Fernandez-Carazo, Rafael |
title |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
title_short |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
title_full |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
title_fullStr |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
title_full_unstemmed |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica |
title_sort |
low cyanobacterial diversity in biotopes of the transantarctic mountains and shackleton range (80-82 degrees s), antarctica |
publisher |
Wiley-Blackwell |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/15172/ http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6941.2011.01132.x/abstract |
long_lat |
ENVELOPE(-26.000,-26.000,-80.833,-80.833) ENVELOPE(-51.318,-51.318,-82.453,-82.453) |
geographic |
Antarctic The Antarctic Shackleton Transantarctic Mountains Shackleton Range Forlidas Pond |
geographic_facet |
Antarctic The Antarctic Shackleton Transantarctic Mountains Shackleton Range Forlidas Pond |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
Fernandez-Carazo, Rafael; Hodgson, Dominic A. orcid:0000-0002-3841-3746 Convey, Peter orcid:0000-0001-8497-9903 Wilmotte, Annick. 2011 Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82 degrees S), Antarctica. FEMS Microbiology Ecology, 77 (3). 503-517. https://doi.org/10.1111/j.1574-6941.2011.01132.x <https://doi.org/10.1111/j.1574-6941.2011.01132.x> |
op_doi |
https://doi.org/10.1111/j.1574-6941.2011.01132.x |
container_title |
FEMS Microbiology Ecology |
container_volume |
77 |
container_issue |
3 |
container_start_page |
503 |
op_container_end_page |
517 |
_version_ |
1766215824768499712 |