Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions
Identifying the lacustrine haptophyte species that produce long-chain alkenones (LCAs) is essential prior to down-core temperature reconstructions. Here, we investigated the identity of LCA-producing species from Lake Toyoni, Japan using 18S ribosomal DNA (rDNA) and organic geochemical analyses. The...
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ftuglasgow:oai:eprints.gla.ac.uk:169200 2023-05-15T16:26:14+02:00 Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions Plancq, Julien McColl, Jill L. Bendle, James A. Seki, Osamu Couto, Jillian M. Henderson, Andrew C.G. Yamashita, Youhei Kawamura, Kimitaka Toney, Jaime L. 2018-11 text http://eprints.gla.ac.uk/169200/ http://eprints.gla.ac.uk/169200/1/169200.pdf en eng Elsevier http://eprints.gla.ac.uk/169200/1/169200.pdf Plancq, J. <http://eprints.gla.ac.uk/view/author/34598.html> , McColl, J. L., Bendle, J. A., Seki, O., Couto, J. M., Henderson, A. C.G., Yamashita, Y., Kawamura, K. and Toney, J. L. <http://eprints.gla.ac.uk/view/author/16493.html> (2018) Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions. Organic Geochemistry <http://eprints.gla.ac.uk/view/journal_volume/Organic_Geochemistry.html>, 125, pp. 189-195. (doi:10.1016/j.orggeochem.2018.09.011 <http://dx.doi.org/10.1016/j.orggeochem.2018.09.011>) cc_by_4 CC-BY Articles PeerReviewed 2018 ftuglasgow https://doi.org/10.1016/j.orggeochem.2018.09.011 2020-05-28T22:23:34Z Identifying the lacustrine haptophyte species that produce long-chain alkenones (LCAs) is essential prior to down-core temperature reconstructions. Here, we investigated the identity of LCA-producing species from Lake Toyoni, Japan using 18S ribosomal DNA (rDNA) and organic geochemical analyses. The rDNA analyses identified eighteen operational taxonomic units (OTUs) of which only one fell within the haptophyte phylotype. This haptophyte belongs to the Group I phylotype, as supported by the LCA distribution found in surface and down-core sediments, and is closely related to a haptophyte found in Lake BrayaSø (Greenland). The inferred temperature using the Greenland calibration is very close to the Lake Toyoni surface temperature recorded during the spring/early summer season, when the LCA-producing haptophyte is likely to bloom. We therefore suggest that the temperature calibration from the Lake BrayaSø, Greenland is a suitable calibration for down-core temperature reconstructions at Lake Toyoni. Article in Journal/Newspaper Greenland University of Glasgow: Enlighten - Publications Greenland Organic Geochemistry 125 189 195 |
institution |
Open Polar |
collection |
University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
English |
description |
Identifying the lacustrine haptophyte species that produce long-chain alkenones (LCAs) is essential prior to down-core temperature reconstructions. Here, we investigated the identity of LCA-producing species from Lake Toyoni, Japan using 18S ribosomal DNA (rDNA) and organic geochemical analyses. The rDNA analyses identified eighteen operational taxonomic units (OTUs) of which only one fell within the haptophyte phylotype. This haptophyte belongs to the Group I phylotype, as supported by the LCA distribution found in surface and down-core sediments, and is closely related to a haptophyte found in Lake BrayaSø (Greenland). The inferred temperature using the Greenland calibration is very close to the Lake Toyoni surface temperature recorded during the spring/early summer season, when the LCA-producing haptophyte is likely to bloom. We therefore suggest that the temperature calibration from the Lake BrayaSø, Greenland is a suitable calibration for down-core temperature reconstructions at Lake Toyoni. |
format |
Article in Journal/Newspaper |
author |
Plancq, Julien McColl, Jill L. Bendle, James A. Seki, Osamu Couto, Jillian M. Henderson, Andrew C.G. Yamashita, Youhei Kawamura, Kimitaka Toney, Jaime L. |
spellingShingle |
Plancq, Julien McColl, Jill L. Bendle, James A. Seki, Osamu Couto, Jillian M. Henderson, Andrew C.G. Yamashita, Youhei Kawamura, Kimitaka Toney, Jaime L. Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
author_facet |
Plancq, Julien McColl, Jill L. Bendle, James A. Seki, Osamu Couto, Jillian M. Henderson, Andrew C.G. Yamashita, Youhei Kawamura, Kimitaka Toney, Jaime L. |
author_sort |
Plancq, Julien |
title |
Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
title_short |
Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
title_full |
Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
title_fullStr |
Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
title_full_unstemmed |
Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions |
title_sort |
genomic identification of the long-chain alkenone producer in freshwater lake toyoni, japan: implications for temperature reconstructions |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://eprints.gla.ac.uk/169200/ http://eprints.gla.ac.uk/169200/1/169200.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
http://eprints.gla.ac.uk/169200/1/169200.pdf Plancq, J. <http://eprints.gla.ac.uk/view/author/34598.html> , McColl, J. L., Bendle, J. A., Seki, O., Couto, J. M., Henderson, A. C.G., Yamashita, Y., Kawamura, K. and Toney, J. L. <http://eprints.gla.ac.uk/view/author/16493.html> (2018) Genomic identification of the long-chain alkenone producer in freshwater Lake Toyoni, Japan: implications for temperature reconstructions. Organic Geochemistry <http://eprints.gla.ac.uk/view/journal_volume/Organic_Geochemistry.html>, 125, pp. 189-195. (doi:10.1016/j.orggeochem.2018.09.011 <http://dx.doi.org/10.1016/j.orggeochem.2018.09.011>) |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.orggeochem.2018.09.011 |
container_title |
Organic Geochemistry |
container_volume |
125 |
container_start_page |
189 |
op_container_end_page |
195 |
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1766015117573488640 |