Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi
Thermal reaction norms for growth rates of six Emiliania huxleyi isolates originating from the central Atlantic (Azores, Portugal) and five isolates from the coastal North Atlantic (Bergen, Norway) were assessed. We used the template mode of variation model to decompose variations in growth rates in...
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crwiley:10.4319/lo.2014.59.5.1570 2024-09-15T18:23:34+00:00 Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi Zhang, Yong Klapper, Regina Lohbeck, Kai T. Bach, Lennart T. Schulz, Kai G. Reusch, Thorsten B. H. Riebesell, Ulf 2014 http://dx.doi.org/10.4319/lo.2014.59.5.1570 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2014.59.5.1570 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2014.59.5.1570 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 59, issue 5, page 1570-1580 ISSN 0024-3590 1939-5590 journal-article 2014 crwiley https://doi.org/10.4319/lo.2014.59.5.1570 2024-08-06T04:20:23Z Thermal reaction norms for growth rates of six Emiliania huxleyi isolates originating from the central Atlantic (Azores, Portugal) and five isolates from the coastal North Atlantic (Bergen, Norway) were assessed. We used the template mode of variation model to decompose variations in growth rates into modes of biological interest: vertical shift, horizontal shift, and generalist—specialist variation. In line with the actual habitat conditions, isolates from Bergen (Bergen population) grew well at lower temperatures, and isolates from the Azores (Azores population) performed better at higher temperatures. The optimum growth temperature of the Azores population was significantly higher than that of the Bergen population. Neutral genetic differentiation was found between populations by microsatellite analysis. These findings indicate that E. huxleyi populations are adapted to local temperature regimes. Next to between‐population variation, we also found variation within populations. Genotype‐by‐environment interactions resulted in the most pronounced phenotypic differences when isolates were exposed to temperatures outside the range they naturally encounter. Variation in thermal reaction norms between and within populations emphasizes the importance of using more than one isolate when studying the consequences of global change on marine phytoplankton. Phenotypic plasticity and standing genetic variation will be important in determining the potential of natural E. huxleyi populations to cope with global climate change. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography 59 5 1570 1580 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Thermal reaction norms for growth rates of six Emiliania huxleyi isolates originating from the central Atlantic (Azores, Portugal) and five isolates from the coastal North Atlantic (Bergen, Norway) were assessed. We used the template mode of variation model to decompose variations in growth rates into modes of biological interest: vertical shift, horizontal shift, and generalist—specialist variation. In line with the actual habitat conditions, isolates from Bergen (Bergen population) grew well at lower temperatures, and isolates from the Azores (Azores population) performed better at higher temperatures. The optimum growth temperature of the Azores population was significantly higher than that of the Bergen population. Neutral genetic differentiation was found between populations by microsatellite analysis. These findings indicate that E. huxleyi populations are adapted to local temperature regimes. Next to between‐population variation, we also found variation within populations. Genotype‐by‐environment interactions resulted in the most pronounced phenotypic differences when isolates were exposed to temperatures outside the range they naturally encounter. Variation in thermal reaction norms between and within populations emphasizes the importance of using more than one isolate when studying the consequences of global change on marine phytoplankton. Phenotypic plasticity and standing genetic variation will be important in determining the potential of natural E. huxleyi populations to cope with global climate change. |
format |
Article in Journal/Newspaper |
author |
Zhang, Yong Klapper, Regina Lohbeck, Kai T. Bach, Lennart T. Schulz, Kai G. Reusch, Thorsten B. H. Riebesell, Ulf |
spellingShingle |
Zhang, Yong Klapper, Regina Lohbeck, Kai T. Bach, Lennart T. Schulz, Kai G. Reusch, Thorsten B. H. Riebesell, Ulf Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
author_facet |
Zhang, Yong Klapper, Regina Lohbeck, Kai T. Bach, Lennart T. Schulz, Kai G. Reusch, Thorsten B. H. Riebesell, Ulf |
author_sort |
Zhang, Yong |
title |
Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
title_short |
Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
title_full |
Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
title_fullStr |
Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
title_full_unstemmed |
Between‐ and within‐population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi |
title_sort |
between‐ and within‐population variations in thermal reaction norms of the coccolithophore emiliania huxleyi |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.4319/lo.2014.59.5.1570 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2014.59.5.1570 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2014.59.5.1570 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography volume 59, issue 5, page 1570-1580 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2014.59.5.1570 |
container_title |
Limnology and Oceanography |
container_volume |
59 |
container_issue |
5 |
container_start_page |
1570 |
op_container_end_page |
1580 |
_version_ |
1810463810757066752 |