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...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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crroyalsociety:10.1098/rspb.2023.2411 2024-06-02T08:15:36+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. Japan Society for the Promotion of Science Villum Fonden 2024 http://dx.doi.org/10.1098/rspb.2023.2411 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2023.2411 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2023.2411 en eng The Royal Society https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 291, issue 2015 ISSN 0962-8452 1471-2954 journal-article 2024 crroyalsociety https://doi.org/10.1098/rspb.2023.2411 2024-05-07T14:16:55Z 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 The Royal Society Proceedings of the Royal Society B: Biological Sciences 291 2015 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
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. |
author2 |
Japan Society for the Promotion of Science Villum Fonden |
format |
Article in Journal/Newspaper |
author |
Segawa, Takahiro Rey-Iglesia, Alba Lorenzen, Eline D. Westbury, Michael V. |
spellingShingle |
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 |
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 |
publisher |
The Royal Society |
publishDate |
2024 |
url |
http://dx.doi.org/10.1098/rspb.2023.2411 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2023.2411 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2023.2411 |
genre |
Ursus arctos Siberia |
genre_facet |
Ursus arctos Siberia |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 291, issue 2015 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
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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1800739843419930624 |