Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic
The Arctic climate was warmer than today at the last interglacial and the Holocene thermal optimum. To reveal the impact of past climate-warming events on the demographic history of an Arctic specialist, we examined both mitochondrial and nuclear genomic variation in the collared lemming (Dicrostony...
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Online Access: | http://hdl.handle.net/11566/290385 https://doi.org/10.1073/pnas.1913596117 |
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ftupmarcheiris:oai:iris.univpm.it:11566/290385 2024-04-21T08:00:58+00:00 Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic Fedorov V. B. Trucchi E. Goropashnaya A. V. Waltari E. Whidden S. E. Stenseth N. C. Fedorov, V. B. Trucchi, E. Goropashnaya, A. V. Waltari, E. Whidden, S. E. Stenseth, N. C. 2020 http://hdl.handle.net/11566/290385 https://doi.org/10.1073/pnas.1913596117 eng eng info:eu-repo/semantics/altIdentifier/pmid/31988125 info:eu-repo/semantics/altIdentifier/wos/WOS:000513898000044 volume:117 issue:6 firstpage:3026 lastpage:3033 numberofpages:8 journal:PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA http://hdl.handle.net/11566/290385 doi:10.1073/pnas.1913596117 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85079325333 info:eu-repo/semantics/closedAccess Beringia Climate warning Holocene optimum Interglacial Mitogenome Animal Arctic Region Arvicolinae Asia Europe Genetic Variation Genome Mitochondrial Genomic Global Warming History Ancient Refugium Tundra info:eu-repo/semantics/article 2020 ftupmarcheiris https://doi.org/10.1073/pnas.1913596117 2024-03-28T01:45:55Z The Arctic climate was warmer than today at the last interglacial and the Holocene thermal optimum. To reveal the impact of past climate-warming events on the demographic history of an Arctic specialist, we examined both mitochondrial and nuclear genomic variation in the collared lemming (Dicrostonyx torquatus, Pallas), a keystone species in tundra communities, across its entire distribution in northern Eurasia. The ancestral phylogenetic position of the West Beringian group and divergence time estimates support the hypothesis of continental range contraction to a single refugial area located in West Beringia during high-magnitude warming of the last interglacial, followed by westward recolonization of northern Eurasia in the last glacial period. The West Beringian group harbors the highest mitogenome diversity and its inferred demography indicates a constantly large effective population size over the Late Pleistocene to Holocene. This suggests that northward forest expansion during recent warming of the Holocene thermal optimum did not affect the gene pool of the collared lemming in West Beringia but reduced genomic diversity and effective population size in all other regions of the Eurasian Arctic. Demographic inference from genomic diversity was corroborated by species distribution modeling showing reduction in species distribution during past climate warming. These conclusions are supported by recent paleoecological evidence suggesting smaller temperature increases and moderate northward forest advances in the extreme northeast of Eurasia during the Late Pleistocene-to-Holocene warming events. This study emphasizes the importance of West Beringia as a potential refugium for cold-adapted Arctic species under ongoing climate warming. Article in Journal/Newspaper Dicrostonyx torquatus Global warming Tundra Beringia Università Politecnica delle Marche: IRIS Proceedings of the National Academy of Sciences 117 6 3026 3033 |
institution |
Open Polar |
collection |
Università Politecnica delle Marche: IRIS |
op_collection_id |
ftupmarcheiris |
language |
English |
topic |
Beringia Climate warning Holocene optimum Interglacial Mitogenome Animal Arctic Region Arvicolinae Asia Europe Genetic Variation Genome Mitochondrial Genomic Global Warming History Ancient Refugium Tundra |
spellingShingle |
Beringia Climate warning Holocene optimum Interglacial Mitogenome Animal Arctic Region Arvicolinae Asia Europe Genetic Variation Genome Mitochondrial Genomic Global Warming History Ancient Refugium Tundra Fedorov V. B. Trucchi E. Goropashnaya A. V. Waltari E. Whidden S. E. Stenseth N. C. Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
topic_facet |
Beringia Climate warning Holocene optimum Interglacial Mitogenome Animal Arctic Region Arvicolinae Asia Europe Genetic Variation Genome Mitochondrial Genomic Global Warming History Ancient Refugium Tundra |
description |
The Arctic climate was warmer than today at the last interglacial and the Holocene thermal optimum. To reveal the impact of past climate-warming events on the demographic history of an Arctic specialist, we examined both mitochondrial and nuclear genomic variation in the collared lemming (Dicrostonyx torquatus, Pallas), a keystone species in tundra communities, across its entire distribution in northern Eurasia. The ancestral phylogenetic position of the West Beringian group and divergence time estimates support the hypothesis of continental range contraction to a single refugial area located in West Beringia during high-magnitude warming of the last interglacial, followed by westward recolonization of northern Eurasia in the last glacial period. The West Beringian group harbors the highest mitogenome diversity and its inferred demography indicates a constantly large effective population size over the Late Pleistocene to Holocene. This suggests that northward forest expansion during recent warming of the Holocene thermal optimum did not affect the gene pool of the collared lemming in West Beringia but reduced genomic diversity and effective population size in all other regions of the Eurasian Arctic. Demographic inference from genomic diversity was corroborated by species distribution modeling showing reduction in species distribution during past climate warming. These conclusions are supported by recent paleoecological evidence suggesting smaller temperature increases and moderate northward forest advances in the extreme northeast of Eurasia during the Late Pleistocene-to-Holocene warming events. This study emphasizes the importance of West Beringia as a potential refugium for cold-adapted Arctic species under ongoing climate warming. |
author2 |
Fedorov, V. B. Trucchi, E. Goropashnaya, A. V. Waltari, E. Whidden, S. E. Stenseth, N. C. |
format |
Article in Journal/Newspaper |
author |
Fedorov V. B. Trucchi E. Goropashnaya A. V. Waltari E. Whidden S. E. Stenseth N. C. |
author_facet |
Fedorov V. B. Trucchi E. Goropashnaya A. V. Waltari E. Whidden S. E. Stenseth N. C. |
author_sort |
Fedorov V. B. |
title |
Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
title_short |
Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
title_full |
Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
title_fullStr |
Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
title_full_unstemmed |
Impact of past climate warming on genomic diversity and demographic history of collared lemmings across the Eurasian Arctic |
title_sort |
impact of past climate warming on genomic diversity and demographic history of collared lemmings across the eurasian arctic |
publishDate |
2020 |
url |
http://hdl.handle.net/11566/290385 https://doi.org/10.1073/pnas.1913596117 |
genre |
Dicrostonyx torquatus Global warming Tundra Beringia |
genre_facet |
Dicrostonyx torquatus Global warming Tundra Beringia |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/31988125 info:eu-repo/semantics/altIdentifier/wos/WOS:000513898000044 volume:117 issue:6 firstpage:3026 lastpage:3033 numberofpages:8 journal:PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA http://hdl.handle.net/11566/290385 doi:10.1073/pnas.1913596117 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85079325333 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1073/pnas.1913596117 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
117 |
container_issue |
6 |
container_start_page |
3026 |
op_container_end_page |
3033 |
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