The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations
The brown bear (Ursus arctos) is one of the survivors of the Late Quaternary megafauna extinctions. However, despite being widely distributed across the Holarctic, brown bears have experienced extensive range reductions, and even extirpations in some geographical regions. Previous research efforts u...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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2024
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Online Access: | https://curis.ku.dk/portal/da/publications/the-origins-and-diversification-of-holarctic-brown-bear-populations-inferred-from-genomes-of-past-and-present-populations(8a57b1f3-44d0-4fa4-b9ea-748c3bb5b58e).html https://doi.org/10.1098/rspb.2023.2411 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/8a57b1f3-44d0-4fa4-b9ea-748c3bb5b58e 2024-05-19T07:49:46+00:00 The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations Segawa, Takahiro Rey-Iglesia, Alba Lorenzen, Eline D. Westbury, Michael V. 2024 https://curis.ku.dk/portal/da/publications/the-origins-and-diversification-of-holarctic-brown-bear-populations-inferred-from-genomes-of-past-and-present-populations(8a57b1f3-44d0-4fa4-b9ea-748c3bb5b58e).html https://doi.org/10.1098/rspb.2023.2411 eng eng info:eu-repo/semantics/closedAccess Segawa , T , Rey-Iglesia , A , Lorenzen , E D & Westbury , M V 2024 , ' The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations ' , Proceedings of the Royal Society B: Biological Sciences , vol. 291 , no. 2015 , 20232411 . https://doi.org/10.1098/rspb.2023.2411 brown bear demography evolution genome palaeogenome article 2024 ftcopenhagenunip https://doi.org/10.1098/rspb.2023.2411 2024-05-02T00:33:24Z The brown bear (Ursus arctos) is one of the survivors of the Late Quaternary megafauna extinctions. However, despite being widely distributed across the Holarctic, brown bears have experienced extensive range reductions, and even extirpations in some geographical regions. Previous research efforts using genetic data have provided valuable insights into their evolutionary history. However, most studies have been limited to contemporary individuals or mitochondrial DNA, limiting insights into population processes that preceded the present. Here, we present genomic data from two Late Pleistocene brown bears from Honshu, Japan and eastern Siberia, and combine them with published contemporary and ancient genomes from across the Holarctic range of brown bears to investigate the evolutionary relationships among brown bear populations through time and space. By including genomic data from Late Pleistocene and Holocene individuals sampled outside the current distribution range, we uncover diversity not present in contemporary populations. Notably, although contemporary individuals display geographically structured populations most likely driven by isolation-by-distance, this pattern varies among the ancient samples across different regions. The inclusion of ancient brown bears in our analysis provides novel insights into the evolutionary history of brown bears and contributes to understanding the populations and diversity lost during the Late Quaternary. Article in Journal/Newspaper Ursus arctos Siberia University of Copenhagen: Research Proceedings of the Royal Society B: Biological Sciences 291 2015 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
brown bear demography evolution genome palaeogenome |
spellingShingle |
brown bear demography evolution genome palaeogenome Segawa, Takahiro Rey-Iglesia, Alba Lorenzen, Eline D. Westbury, Michael V. The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
topic_facet |
brown bear demography evolution genome palaeogenome |
description |
The brown bear (Ursus arctos) is one of the survivors of the Late Quaternary megafauna extinctions. However, despite being widely distributed across the Holarctic, brown bears have experienced extensive range reductions, and even extirpations in some geographical regions. Previous research efforts using genetic data have provided valuable insights into their evolutionary history. However, most studies have been limited to contemporary individuals or mitochondrial DNA, limiting insights into population processes that preceded the present. Here, we present genomic data from two Late Pleistocene brown bears from Honshu, Japan and eastern Siberia, and combine them with published contemporary and ancient genomes from across the Holarctic range of brown bears to investigate the evolutionary relationships among brown bear populations through time and space. By including genomic data from Late Pleistocene and Holocene individuals sampled outside the current distribution range, we uncover diversity not present in contemporary populations. Notably, although contemporary individuals display geographically structured populations most likely driven by isolation-by-distance, this pattern varies among the ancient samples across different regions. The inclusion of ancient brown bears in our analysis provides novel insights into the evolutionary history of brown bears and contributes to understanding the populations and diversity lost during the Late Quaternary. |
format |
Article in Journal/Newspaper |
author |
Segawa, Takahiro Rey-Iglesia, Alba Lorenzen, Eline D. Westbury, Michael V. |
author_facet |
Segawa, Takahiro Rey-Iglesia, Alba Lorenzen, Eline D. Westbury, Michael V. |
author_sort |
Segawa, Takahiro |
title |
The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
title_short |
The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
title_full |
The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
title_fullStr |
The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
title_full_unstemmed |
The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations |
title_sort |
origins and diversification of holarctic brown bear populations inferred from genomes of past and present populations |
publishDate |
2024 |
url |
https://curis.ku.dk/portal/da/publications/the-origins-and-diversification-of-holarctic-brown-bear-populations-inferred-from-genomes-of-past-and-present-populations(8a57b1f3-44d0-4fa4-b9ea-748c3bb5b58e).html https://doi.org/10.1098/rspb.2023.2411 |
genre |
Ursus arctos Siberia |
genre_facet |
Ursus arctos Siberia |
op_source |
Segawa , T , Rey-Iglesia , A , Lorenzen , E D & Westbury , M V 2024 , ' The origins and diversification of Holarctic brown bear populations inferred from genomes of past and present populations ' , Proceedings of the Royal Society B: Biological Sciences , vol. 291 , no. 2015 , 20232411 . https://doi.org/10.1098/rspb.2023.2411 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1098/rspb.2023.2411 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
291 |
container_issue |
2015 |
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1799468323732193280 |