Bathycoccus and micromonas in an winter Arctic metagenome
Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain Phytoplankton and other protists are diverse and ubiquitous in oceanic waters, and have specific growth requirements, which influence their distribution. Climate chan...
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ftcsic:oai:digital.csic.es:10261/136050 2024-02-11T09:55:15+01:00 Bathycoccus and micromonas in an winter Arctic metagenome Joli, Nathalie Logares, Ramiro Babin, Marcel Lovejoy, Connie 2015-02-25 http://hdl.handle.net/10261/136050 unknown Association for the Sciences of Limnology and Oceanography http://www.sgmeet.com/aslo/granada2015/program.asp Sí 2015 Aquatic Sciences Meeting. Program Book: 103 (2015) http://hdl.handle.net/10261/136050 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2015 ftcsic 2024-01-16T10:17:04Z Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain Phytoplankton and other protists are diverse and ubiquitous in oceanic waters, and have specific growth requirements, which influence their distribution. Climate change is particularly pronounced across the Arctic, and if current trends continue, will be totally free of ice during the summer. While these changes mean that phytoplankton and associated microbial communities will be exposed to more open water and perhaps higher light levels than previously in summer, winter communities will continue to be subjected to long periods of darkness and low light in spring prior to ice out. Curiously even under ice and in the dark of winter, some microbial species survive; for example, small 1-3 µm chlorophytes, maintain their populations and are able to begin exponential growth as early as March when some light penetrates the ice. It is not known how these photosynthetic eukaryotes are sustained over 4-5 months of darkness. Here we analysed a metagenome generated by high throughput Illumina sequencing, from an environmental DNA sample collected from Amundsen Gulf, Beaufort Sea in December 2007. We found a significant proportion of contigs matching Micromonas and Bathycoccus suggesting that these two chlorophytes were well represented in the community following Polar sunset. Our analysis suggests that the Arctic chlorophytes differ substantially from temperate representatives of the same genera and we will report on potential mechanisms for their survival in the absence of light Peer Reviewed Conference Object Amundsen Gulf Arctic Beaufort Sea Climate change Phytoplankton Digital.CSIC (Spanish National Research Council) Arctic |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain Phytoplankton and other protists are diverse and ubiquitous in oceanic waters, and have specific growth requirements, which influence their distribution. Climate change is particularly pronounced across the Arctic, and if current trends continue, will be totally free of ice during the summer. While these changes mean that phytoplankton and associated microbial communities will be exposed to more open water and perhaps higher light levels than previously in summer, winter communities will continue to be subjected to long periods of darkness and low light in spring prior to ice out. Curiously even under ice and in the dark of winter, some microbial species survive; for example, small 1-3 µm chlorophytes, maintain their populations and are able to begin exponential growth as early as March when some light penetrates the ice. It is not known how these photosynthetic eukaryotes are sustained over 4-5 months of darkness. Here we analysed a metagenome generated by high throughput Illumina sequencing, from an environmental DNA sample collected from Amundsen Gulf, Beaufort Sea in December 2007. We found a significant proportion of contigs matching Micromonas and Bathycoccus suggesting that these two chlorophytes were well represented in the community following Polar sunset. Our analysis suggests that the Arctic chlorophytes differ substantially from temperate representatives of the same genera and we will report on potential mechanisms for their survival in the absence of light Peer Reviewed |
format |
Conference Object |
author |
Joli, Nathalie Logares, Ramiro Babin, Marcel Lovejoy, Connie |
spellingShingle |
Joli, Nathalie Logares, Ramiro Babin, Marcel Lovejoy, Connie Bathycoccus and micromonas in an winter Arctic metagenome |
author_facet |
Joli, Nathalie Logares, Ramiro Babin, Marcel Lovejoy, Connie |
author_sort |
Joli, Nathalie |
title |
Bathycoccus and micromonas in an winter Arctic metagenome |
title_short |
Bathycoccus and micromonas in an winter Arctic metagenome |
title_full |
Bathycoccus and micromonas in an winter Arctic metagenome |
title_fullStr |
Bathycoccus and micromonas in an winter Arctic metagenome |
title_full_unstemmed |
Bathycoccus and micromonas in an winter Arctic metagenome |
title_sort |
bathycoccus and micromonas in an winter arctic metagenome |
publisher |
Association for the Sciences of Limnology and Oceanography |
publishDate |
2015 |
url |
http://hdl.handle.net/10261/136050 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Amundsen Gulf Arctic Beaufort Sea Climate change Phytoplankton |
genre_facet |
Amundsen Gulf Arctic Beaufort Sea Climate change Phytoplankton |
op_relation |
http://www.sgmeet.com/aslo/granada2015/program.asp Sí 2015 Aquatic Sciences Meeting. Program Book: 103 (2015) http://hdl.handle.net/10261/136050 |
op_rights |
none |
_version_ |
1790594755132915712 |