Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations
To understand the thermal plasticity of a coastal foundation species across its latitudinal distribution, we assess physiological responses to high temperature stress in the kelp Laminaria digitata in combination with population genetic characteristics and relate heat resilience to genetic features...
Published in: | Ecology and Evolution |
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Online Access: | https://epic.awi.de/id/eprint/52861/ https://epic.awi.de/id/eprint/52861/1/Liesner_etal_2020_EcolEvol.pdf https://onlinelibrary.wiley.com/doi/10.1002/ece3.6569 https://hdl.handle.net/10013/epic.20a929e9-27e2-4785-a142-1946b0c60e3a https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:52861 2023-05-15T15:15:06+02:00 Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations Liesner, Daniel Fouqueau, Louise Valero, Myriam Roleda, Michael Y. Pearson, Gareth A. Bischof, Kai Valentin, Klaus Bartsch, Inka 2020 application/pdf https://epic.awi.de/id/eprint/52861/ https://epic.awi.de/id/eprint/52861/1/Liesner_etal_2020_EcolEvol.pdf https://onlinelibrary.wiley.com/doi/10.1002/ece3.6569 https://hdl.handle.net/10013/epic.20a929e9-27e2-4785-a142-1946b0c60e3a https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/52861/1/Liesner_etal_2020_EcolEvol.pdf https://hdl.handle.net/ Liesner, D. orcid:0000-0002-2125-9498 , Fouqueau, L. orcid:0000-0003-0371-9339 , Valero, M. orcid:0000-0002-9000-1423 , Roleda, M. Y. orcid:0000-0003-0568-9081 , Pearson, G. A. orcid:0000-0002-0768-464X , Bischof, K. orcid:0000-0002-4497-1920 , Valentin, K. orcid:0000-0001-7401-9423 and Bartsch, I. orcid:0000-0001-7609-2149 (2020) Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations , Ecology and Evolution . doi:10.1002/ece3.6569 <https://doi.org/10.1002/ece3.6569> , hdl:10013/epic.20a929e9-27e2-4785-a142-1946b0c60e3a info:eu-repo/semantics/openAccess EPIC3Ecology and Evolution Article isiRev info:eu-repo/semantics/article 2020 ftawi https://doi.org/10.1002/ece3.6569 2021-12-24T15:45:53Z To understand the thermal plasticity of a coastal foundation species across its latitudinal distribution, we assess physiological responses to high temperature stress in the kelp Laminaria digitata in combination with population genetic characteristics and relate heat resilience to genetic features and phylogeography. We hypothesize that populations from Arctic and cold-temperate locations are less heat resilient than populations from warm distributional edges. Using meristems of natural L. digitata populations from six locations ranging between Kongsfjorden, Spitsbergen (79°N), and Quiberon, France (47°N), we performed a common-garden heat stress experi- ment applying 15°C to 23°C over eight days. We assessed growth, photosynthetic quantum yield, carbon and nitrogen storage, and xanthophyll pigment contents as response traits. Population connectivity and genetic diversity were analyzed with microsatellite markers. Results from the heat stress experiment suggest that the upper temperature limit of L. digitata is nearly identical across its distribution range, but subtle differences in growth and stress responses were revealed for three popu- lations from the species’ ecological range margins. Two populations at the species’ warm distribution limit showed higher temperature tolerance compared to other populations in growth at 19°C and recovery from 21°C (Quiberon, France), and pho- tosynthetic quantum yield and xanthophyll pigment responses at 23°C (Helgoland, Germany). In L. digitata from the northernmost population (Spitsbergen, Norway), quantum yield indicated the highest heat sensitivity. Microsatellite genotyping revealed all sampled populations to be genetically distinct, with a strong hierarchical structure between southern and northern clades. Genetic diversity was lowest in the isolated population of the North Sea island of Helgoland and highest in Roscoff in the English Channel. All together, these results support the hypothesis of moderate local differentiation across L. digitata's European distribution, whereas effects are likely too weak to ameliorate the species’ capacity to withstand ocean warming and marine heatwaves at the southern range edge. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden North Atlantic Spitsbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Norway Helgoland Ecology and Evolution 10 17 9144 9177 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
To understand the thermal plasticity of a coastal foundation species across its latitudinal distribution, we assess physiological responses to high temperature stress in the kelp Laminaria digitata in combination with population genetic characteristics and relate heat resilience to genetic features and phylogeography. We hypothesize that populations from Arctic and cold-temperate locations are less heat resilient than populations from warm distributional edges. Using meristems of natural L. digitata populations from six locations ranging between Kongsfjorden, Spitsbergen (79°N), and Quiberon, France (47°N), we performed a common-garden heat stress experi- ment applying 15°C to 23°C over eight days. We assessed growth, photosynthetic quantum yield, carbon and nitrogen storage, and xanthophyll pigment contents as response traits. Population connectivity and genetic diversity were analyzed with microsatellite markers. Results from the heat stress experiment suggest that the upper temperature limit of L. digitata is nearly identical across its distribution range, but subtle differences in growth and stress responses were revealed for three popu- lations from the species’ ecological range margins. Two populations at the species’ warm distribution limit showed higher temperature tolerance compared to other populations in growth at 19°C and recovery from 21°C (Quiberon, France), and pho- tosynthetic quantum yield and xanthophyll pigment responses at 23°C (Helgoland, Germany). In L. digitata from the northernmost population (Spitsbergen, Norway), quantum yield indicated the highest heat sensitivity. Microsatellite genotyping revealed all sampled populations to be genetically distinct, with a strong hierarchical structure between southern and northern clades. Genetic diversity was lowest in the isolated population of the North Sea island of Helgoland and highest in Roscoff in the English Channel. All together, these results support the hypothesis of moderate local differentiation across L. digitata's European distribution, whereas effects are likely too weak to ameliorate the species’ capacity to withstand ocean warming and marine heatwaves at the southern range edge. |
format |
Article in Journal/Newspaper |
author |
Liesner, Daniel Fouqueau, Louise Valero, Myriam Roleda, Michael Y. Pearson, Gareth A. Bischof, Kai Valentin, Klaus Bartsch, Inka |
spellingShingle |
Liesner, Daniel Fouqueau, Louise Valero, Myriam Roleda, Michael Y. Pearson, Gareth A. Bischof, Kai Valentin, Klaus Bartsch, Inka Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
author_facet |
Liesner, Daniel Fouqueau, Louise Valero, Myriam Roleda, Michael Y. Pearson, Gareth A. Bischof, Kai Valentin, Klaus Bartsch, Inka |
author_sort |
Liesner, Daniel |
title |
Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
title_short |
Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
title_full |
Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
title_fullStr |
Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
title_full_unstemmed |
Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations |
title_sort |
heat stress responses and population genetics of the kelp laminaria digitata (phaeophyceae) across latitudes reveal differentiation among north atlantic populations |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/52861/ https://epic.awi.de/id/eprint/52861/1/Liesner_etal_2020_EcolEvol.pdf https://onlinelibrary.wiley.com/doi/10.1002/ece3.6569 https://hdl.handle.net/10013/epic.20a929e9-27e2-4785-a142-1946b0c60e3a https://hdl.handle.net/ |
geographic |
Arctic Norway Helgoland |
geographic_facet |
Arctic Norway Helgoland |
genre |
Arctic Kongsfjord* Kongsfjorden North Atlantic Spitsbergen |
genre_facet |
Arctic Kongsfjord* Kongsfjorden North Atlantic Spitsbergen |
op_source |
EPIC3Ecology and Evolution |
op_relation |
https://epic.awi.de/id/eprint/52861/1/Liesner_etal_2020_EcolEvol.pdf https://hdl.handle.net/ Liesner, D. orcid:0000-0002-2125-9498 , Fouqueau, L. orcid:0000-0003-0371-9339 , Valero, M. orcid:0000-0002-9000-1423 , Roleda, M. Y. orcid:0000-0003-0568-9081 , Pearson, G. A. orcid:0000-0002-0768-464X , Bischof, K. orcid:0000-0002-4497-1920 , Valentin, K. orcid:0000-0001-7401-9423 and Bartsch, I. orcid:0000-0001-7609-2149 (2020) Heat stress responses and population genetics of the kelp Laminaria digitata (Phaeophyceae) across latitudes reveal differentiation among North Atlantic populations , Ecology and Evolution . doi:10.1002/ece3.6569 <https://doi.org/10.1002/ece3.6569> , hdl:10013/epic.20a929e9-27e2-4785-a142-1946b0c60e3a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/ece3.6569 |
container_title |
Ecology and Evolution |
container_volume |
10 |
container_issue |
17 |
container_start_page |
9144 |
op_container_end_page |
9177 |
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1766345487304097792 |