Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils
We describe the application of molecular biological techniques to estimate eukaryotic diversity (primarily fungi, algae, and protists) in Antarctic soils across a latitudinal and environmental gradient between approximately 60 and 87°S. The data were used to (i) test the hypothesis that diversity wo...
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ftpubmed:oai:pubmedcentral.nih.gov:522059 2023-05-15T13:15:19+02:00 Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils Lawley, Blair Ripley, Sarah Bridge, Paul Convey, Peter 2004-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC522059 http://www.ncbi.nlm.nih.gov/pubmed/15466539 https://doi.org/10.1128/AEM.70.10.5963-5972.2004 en eng American Society for Microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC522059 http://www.ncbi.nlm.nih.gov/pubmed/15466539 http://dx.doi.org/10.1128/AEM.70.10.5963-5972.2004 Copyright © 2004, American Society for Microbiology Microbial Ecology Text 2004 ftpubmed https://doi.org/10.1128/AEM.70.10.5963-5972.2004 2013-08-30T03:12:26Z We describe the application of molecular biological techniques to estimate eukaryotic diversity (primarily fungi, algae, and protists) in Antarctic soils across a latitudinal and environmental gradient between approximately 60 and 87°S. The data were used to (i) test the hypothesis that diversity would decrease with increasing southerly latitude and environmental severity, as is generally claimed for “higher” faunal and plant groups, and (ii) investigate the level of endemicity displayed in different taxonomic groups. Only limited support was obtained for a systematic decrease in diversity with latitude, and then only at the level of a gross comparison between maritime (Antarctic Peninsula/Scotia Arc) and continental Antarctic sites. While the most southerly continental Antarctic site was three to four times less diverse than all maritime sites, there was no evidence for a trend of decreasing diversity across the entire range of the maritime Antarctic (60 to 72°S). Rather, we found the reverse pattern, with highest diversity at sites on Alexander Island (ca. 72°S), at the southern limit of the maritime Antarctic. The very limited overlap found between the eukaryotic biota of the different study sites, combined with their generally low relatedness to existing sequence databases, indicates a high level of Antarctic site isolation and possibly endemicity, a pattern not consistent with similar studies on other continents. Text Alexander Island Antarc* Antarctic Antarctic Peninsula PubMed Central (PMC) Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Antarctic Antarctic Peninsula Applied and Environmental Microbiology 70 10 5963 5972 |
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PubMed Central (PMC) |
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language |
English |
topic |
Microbial Ecology |
spellingShingle |
Microbial Ecology Lawley, Blair Ripley, Sarah Bridge, Paul Convey, Peter Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
topic_facet |
Microbial Ecology |
description |
We describe the application of molecular biological techniques to estimate eukaryotic diversity (primarily fungi, algae, and protists) in Antarctic soils across a latitudinal and environmental gradient between approximately 60 and 87°S. The data were used to (i) test the hypothesis that diversity would decrease with increasing southerly latitude and environmental severity, as is generally claimed for “higher” faunal and plant groups, and (ii) investigate the level of endemicity displayed in different taxonomic groups. Only limited support was obtained for a systematic decrease in diversity with latitude, and then only at the level of a gross comparison between maritime (Antarctic Peninsula/Scotia Arc) and continental Antarctic sites. While the most southerly continental Antarctic site was three to four times less diverse than all maritime sites, there was no evidence for a trend of decreasing diversity across the entire range of the maritime Antarctic (60 to 72°S). Rather, we found the reverse pattern, with highest diversity at sites on Alexander Island (ca. 72°S), at the southern limit of the maritime Antarctic. The very limited overlap found between the eukaryotic biota of the different study sites, combined with their generally low relatedness to existing sequence databases, indicates a high level of Antarctic site isolation and possibly endemicity, a pattern not consistent with similar studies on other continents. |
format |
Text |
author |
Lawley, Blair Ripley, Sarah Bridge, Paul Convey, Peter |
author_facet |
Lawley, Blair Ripley, Sarah Bridge, Paul Convey, Peter |
author_sort |
Lawley, Blair |
title |
Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
title_short |
Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
title_full |
Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
title_fullStr |
Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
title_full_unstemmed |
Molecular Analysis of Geographic Patterns of Eukaryotic Diversity in Antarctic Soils |
title_sort |
molecular analysis of geographic patterns of eukaryotic diversity in antarctic soils |
publisher |
American Society for Microbiology |
publishDate |
2004 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC522059 http://www.ncbi.nlm.nih.gov/pubmed/15466539 https://doi.org/10.1128/AEM.70.10.5963-5972.2004 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) |
geographic |
Alexander Island Antarctic Antarctic Peninsula |
geographic_facet |
Alexander Island Antarctic Antarctic Peninsula |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC522059 http://www.ncbi.nlm.nih.gov/pubmed/15466539 http://dx.doi.org/10.1128/AEM.70.10.5963-5972.2004 |
op_rights |
Copyright © 2004, American Society for Microbiology |
op_doi |
https://doi.org/10.1128/AEM.70.10.5963-5972.2004 |
container_title |
Applied and Environmental Microbiology |
container_volume |
70 |
container_issue |
10 |
container_start_page |
5963 |
op_container_end_page |
5972 |
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1766268043032264704 |