Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change
Abstract Arctic phytoplankton and their response to future conditions shape one of the most rapidly changing ecosystems on the planet. We tested how much the phenotypic responses of strains from the same Arctic diatom population diverge and whether the physiology and intraspecific composition of mul...
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Online Access: | http://dx.doi.org/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14675 |
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crwiley:10.1111/gcb.14675 2024-09-15T18:02:13+00:00 Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change Wolf, Klara K. E. Romanelli, Elisa Rost, Björn John, Uwe Collins, Sinead Weigand, Hannah Hoppe, Clara J. M. Norges Forskningsråd Royal Society 2019 http://dx.doi.org/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14675 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Global Change Biology volume 25, issue 9, page 2869-2884 ISSN 1354-1013 1365-2486 journal-article 2019 crwiley https://doi.org/10.1111/gcb.14675 2024-08-09T04:23:04Z Abstract Arctic phytoplankton and their response to future conditions shape one of the most rapidly changing ecosystems on the planet. We tested how much the phenotypic responses of strains from the same Arctic diatom population diverge and whether the physiology and intraspecific composition of multistrain populations differs from expectations based on single strain traits. To this end, we conducted incubation experiments with the diatom Thalassiosira hyalina under present‐day and future temperature and pCO 2 treatments. Six fresh isolates from the same Svalbard population were incubated as mono‐ and multistrain cultures. For the first time, we were able to closely follow intraspecific selection within an artificial population using microsatellites and allele‐specific quantitative PCR. Our results showed not only that there is substantial variation in how strains of the same species cope with the tested environments but also that changes in genotype composition, production rates, and cellular quotas in the multistrain cultures are not predictable from monoculture performance. Nevertheless, the physiological responses as well as strain composition of the artificial populations were highly reproducible within each environment. Interestingly, we only detected significant strain sorting in those populations exposed to the future treatment. This study illustrates that the genetic composition of populations can change on very short timescales through selection from the intraspecific standing stock, indicating the potential for rapid population level adaptation to climate change. We further show that individuals adjust their phenotype not only in response to their physicochemical but also to their biological surroundings. Such intraspecific interactions need to be understood in order to realistically predict ecosystem responses to global change. Article in Journal/Newspaper Climate change Phytoplankton Svalbard Wiley Online Library Global Change Biology 25 9 2869 2884 |
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Wiley Online Library |
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English |
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Abstract Arctic phytoplankton and their response to future conditions shape one of the most rapidly changing ecosystems on the planet. We tested how much the phenotypic responses of strains from the same Arctic diatom population diverge and whether the physiology and intraspecific composition of multistrain populations differs from expectations based on single strain traits. To this end, we conducted incubation experiments with the diatom Thalassiosira hyalina under present‐day and future temperature and pCO 2 treatments. Six fresh isolates from the same Svalbard population were incubated as mono‐ and multistrain cultures. For the first time, we were able to closely follow intraspecific selection within an artificial population using microsatellites and allele‐specific quantitative PCR. Our results showed not only that there is substantial variation in how strains of the same species cope with the tested environments but also that changes in genotype composition, production rates, and cellular quotas in the multistrain cultures are not predictable from monoculture performance. Nevertheless, the physiological responses as well as strain composition of the artificial populations were highly reproducible within each environment. Interestingly, we only detected significant strain sorting in those populations exposed to the future treatment. This study illustrates that the genetic composition of populations can change on very short timescales through selection from the intraspecific standing stock, indicating the potential for rapid population level adaptation to climate change. We further show that individuals adjust their phenotype not only in response to their physicochemical but also to their biological surroundings. Such intraspecific interactions need to be understood in order to realistically predict ecosystem responses to global change. |
author2 |
Norges Forskningsråd Royal Society |
format |
Article in Journal/Newspaper |
author |
Wolf, Klara K. E. Romanelli, Elisa Rost, Björn John, Uwe Collins, Sinead Weigand, Hannah Hoppe, Clara J. M. |
spellingShingle |
Wolf, Klara K. E. Romanelli, Elisa Rost, Björn John, Uwe Collins, Sinead Weigand, Hannah Hoppe, Clara J. M. Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
author_facet |
Wolf, Klara K. E. Romanelli, Elisa Rost, Björn John, Uwe Collins, Sinead Weigand, Hannah Hoppe, Clara J. M. |
author_sort |
Wolf, Klara K. E. |
title |
Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
title_short |
Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
title_full |
Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
title_fullStr |
Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
title_full_unstemmed |
Company matters: The presence of other genotypes alters traits and intraspecific selection in an Arctic diatom under climate change |
title_sort |
company matters: the presence of other genotypes alters traits and intraspecific selection in an arctic diatom under climate change |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14675 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14675 |
genre |
Climate change Phytoplankton Svalbard |
genre_facet |
Climate change Phytoplankton Svalbard |
op_source |
Global Change Biology volume 25, issue 9, page 2869-2884 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.14675 |
container_title |
Global Change Biology |
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25 |
container_issue |
9 |
container_start_page |
2869 |
op_container_end_page |
2884 |
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1810439642772668416 |