Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean
Heterotrophic marine flagellates (HF) are ubiquitous in the world's oceans and represented in nearly all branches of the domain Eukaryota. However, the factors determining distributions of major taxonomic groups are poorly known. The Arctic Ocean is a good model environment for examining the di...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4345384/ http://www.ncbi.nlm.nih.gov/pubmed/25595764 https://doi.org/10.1128/AEM.02737-14 |
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ftpubmed:oai:pubmedcentral.nih.gov:4345384 2023-05-15T14:51:11+02:00 Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean Thaler, Mary Lovejoy, Connie 2015-01-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4345384/ http://www.ncbi.nlm.nih.gov/pubmed/25595764 https://doi.org/10.1128/AEM.02737-14 en eng American Society for Microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4345384/ http://www.ncbi.nlm.nih.gov/pubmed/25595764 http://dx.doi.org/10.1128/AEM.02737-14 Copyright © 2015, American Society for Microbiology. All Rights Reserved. Environmental Microbiology Text 2015 ftpubmed https://doi.org/10.1128/AEM.02737-14 2015-09-06T00:17:14Z Heterotrophic marine flagellates (HF) are ubiquitous in the world's oceans and represented in nearly all branches of the domain Eukaryota. However, the factors determining distributions of major taxonomic groups are poorly known. The Arctic Ocean is a good model environment for examining the distribution of functionally similar but phylogenetically diverse HF because the physical oceanography and annual ice cycles result in distinct environments that could select for microbial communities or favor specific taxa. We reanalyzed new and previously published high-throughput sequencing data from multiple studies in the Arctic Ocean to identify broad patterns in the distribution of individual taxa. HF accounted for fewer than 2% to over one-half of the reads from the water column and for up to 60% of reads from ice, which was dominated by Cryothecomonas. In the water column, many HF phylotypes belonging to Telonemia and Picozoa, uncultured marine stramenopiles (MAST), and choanoflagellates were geographically widely distributed. However, for two groups in particular, Telonemia and Cryothecomonas, some species level taxa showed more restricted distributions. For example, several phylotypes of Telonemia favored open waters with lower nutrients such as the Canada Basin and offshore of the Mackenzie Shelf. In summary, we found that while some Arctic HF were successful over a range of conditions, others could be specialists that occur under particular conditions. We conclude that tracking species level diversity in HF not only is feasible but also provides a potential tool for understanding the responses of marine microbial ecosystems to rapidly changing ice regimes. Text Arctic Arctic Ocean canada basin Mackenzie Shelf PubMed Central (PMC) Arctic Arctic Ocean Canada Applied and Environmental Microbiology 81 6 2137 2148 |
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English |
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Environmental Microbiology |
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Environmental Microbiology Thaler, Mary Lovejoy, Connie Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
topic_facet |
Environmental Microbiology |
description |
Heterotrophic marine flagellates (HF) are ubiquitous in the world's oceans and represented in nearly all branches of the domain Eukaryota. However, the factors determining distributions of major taxonomic groups are poorly known. The Arctic Ocean is a good model environment for examining the distribution of functionally similar but phylogenetically diverse HF because the physical oceanography and annual ice cycles result in distinct environments that could select for microbial communities or favor specific taxa. We reanalyzed new and previously published high-throughput sequencing data from multiple studies in the Arctic Ocean to identify broad patterns in the distribution of individual taxa. HF accounted for fewer than 2% to over one-half of the reads from the water column and for up to 60% of reads from ice, which was dominated by Cryothecomonas. In the water column, many HF phylotypes belonging to Telonemia and Picozoa, uncultured marine stramenopiles (MAST), and choanoflagellates were geographically widely distributed. However, for two groups in particular, Telonemia and Cryothecomonas, some species level taxa showed more restricted distributions. For example, several phylotypes of Telonemia favored open waters with lower nutrients such as the Canada Basin and offshore of the Mackenzie Shelf. In summary, we found that while some Arctic HF were successful over a range of conditions, others could be specialists that occur under particular conditions. We conclude that tracking species level diversity in HF not only is feasible but also provides a potential tool for understanding the responses of marine microbial ecosystems to rapidly changing ice regimes. |
format |
Text |
author |
Thaler, Mary Lovejoy, Connie |
author_facet |
Thaler, Mary Lovejoy, Connie |
author_sort |
Thaler, Mary |
title |
Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
title_short |
Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
title_full |
Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
title_fullStr |
Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
title_full_unstemmed |
Biogeography of Heterotrophic Flagellate Populations Indicates the Presence of Generalist and Specialist Taxa in the Arctic Ocean |
title_sort |
biogeography of heterotrophic flagellate populations indicates the presence of generalist and specialist taxa in the arctic ocean |
publisher |
American Society for Microbiology |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4345384/ http://www.ncbi.nlm.nih.gov/pubmed/25595764 https://doi.org/10.1128/AEM.02737-14 |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean canada basin Mackenzie Shelf |
genre_facet |
Arctic Arctic Ocean canada basin Mackenzie Shelf |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4345384/ http://www.ncbi.nlm.nih.gov/pubmed/25595764 http://dx.doi.org/10.1128/AEM.02737-14 |
op_rights |
Copyright © 2015, American Society for Microbiology. All Rights Reserved. |
op_doi |
https://doi.org/10.1128/AEM.02737-14 |
container_title |
Applied and Environmental Microbiology |
container_volume |
81 |
container_issue |
6 |
container_start_page |
2137 |
op_container_end_page |
2148 |
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1766322238320017408 |