Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages"
Little is known about how mammalian biogeography on islands was affected by sea-level fluctuations. In the Japanese Archipelago, brown bears ( Ursus arctos ) currently inhabit only Hokkaido, the northern island, but Pleistocene fossils indicate a past distribution throughout Honshu, Japan's lar...
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ftdatacite:10.6084/m9.figshare.c.5525200.v2 2023-05-15T18:42:06+02:00 Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" Segawa, Takahiro Yonezawa, Takahiro Mori, Hiroshi Akiyoshi, Ayumi Allentoft, Morten E. Kohno, Ayako Tokanai, Fuyuki Willerslev, Eske Kohno, Naoki Nishihara, Hidenori 2021 https://dx.doi.org/10.6084/m9.figshare.c.5525200.v2 https://rs.figshare.com/collections/Supplementary_material_from_Ancient_DNA_reveals_multiple_origins_and_migration_waves_of_extinct_Japanese_brown_bear_lineages_/5525200/2 unknown The Royal Society https://dx.doi.org/10.1098/rsos.210518 https://dx.doi.org/10.6084/m9.figshare.c.5525200 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Evolutionary Biology FOS Biological sciences Collection article 2021 ftdatacite https://doi.org/10.6084/m9.figshare.c.5525200.v2 https://doi.org/10.1098/rsos.210518 https://doi.org/10.6084/m9.figshare.c.5525200 2021-11-05T12:55:41Z Little is known about how mammalian biogeography on islands was affected by sea-level fluctuations. In the Japanese Archipelago, brown bears ( Ursus arctos ) currently inhabit only Hokkaido, the northern island, but Pleistocene fossils indicate a past distribution throughout Honshu, Japan's largest island. However, the difficulty of recovering ancient DNA from fossils in temperate East Asia has limited our understanding of their evolutionary history. Here, we analysed mitochondrial DNA from a 32 500-year-old brown bear fossil from Honshu. Our results show that this individual belonged to a previously unknown lineage that split approximately 160 Ka from its sister lineage, the Southern Hokkaido clade. This divergence time and fossil record suggest that brown bears migrated from the Eurasian continent to Honshu at least twice; the first population was an early-diverging lineage (greater than 340 Ka), and the second migrated via Hokkaido after approximately 160 Ka, during the ice age. Thus, glacial-age sea-level falls might have facilitated migrations of large mammals more frequently than previously thought, which may have had a substantial impact on ecosystem dynamics in these isolated islands. Article in Journal/Newspaper Ursus arctos DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
unknown |
topic |
Evolutionary Biology FOS Biological sciences |
spellingShingle |
Evolutionary Biology FOS Biological sciences Segawa, Takahiro Yonezawa, Takahiro Mori, Hiroshi Akiyoshi, Ayumi Allentoft, Morten E. Kohno, Ayako Tokanai, Fuyuki Willerslev, Eske Kohno, Naoki Nishihara, Hidenori Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
topic_facet |
Evolutionary Biology FOS Biological sciences |
description |
Little is known about how mammalian biogeography on islands was affected by sea-level fluctuations. In the Japanese Archipelago, brown bears ( Ursus arctos ) currently inhabit only Hokkaido, the northern island, but Pleistocene fossils indicate a past distribution throughout Honshu, Japan's largest island. However, the difficulty of recovering ancient DNA from fossils in temperate East Asia has limited our understanding of their evolutionary history. Here, we analysed mitochondrial DNA from a 32 500-year-old brown bear fossil from Honshu. Our results show that this individual belonged to a previously unknown lineage that split approximately 160 Ka from its sister lineage, the Southern Hokkaido clade. This divergence time and fossil record suggest that brown bears migrated from the Eurasian continent to Honshu at least twice; the first population was an early-diverging lineage (greater than 340 Ka), and the second migrated via Hokkaido after approximately 160 Ka, during the ice age. Thus, glacial-age sea-level falls might have facilitated migrations of large mammals more frequently than previously thought, which may have had a substantial impact on ecosystem dynamics in these isolated islands. |
format |
Article in Journal/Newspaper |
author |
Segawa, Takahiro Yonezawa, Takahiro Mori, Hiroshi Akiyoshi, Ayumi Allentoft, Morten E. Kohno, Ayako Tokanai, Fuyuki Willerslev, Eske Kohno, Naoki Nishihara, Hidenori |
author_facet |
Segawa, Takahiro Yonezawa, Takahiro Mori, Hiroshi Akiyoshi, Ayumi Allentoft, Morten E. Kohno, Ayako Tokanai, Fuyuki Willerslev, Eske Kohno, Naoki Nishihara, Hidenori |
author_sort |
Segawa, Takahiro |
title |
Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
title_short |
Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
title_full |
Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
title_fullStr |
Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
title_full_unstemmed |
Supplementary material from "Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages" |
title_sort |
supplementary material from "ancient dna reveals multiple origins and migration waves of extinct japanese brown bear lineages" |
publisher |
The Royal Society |
publishDate |
2021 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5525200.v2 https://rs.figshare.com/collections/Supplementary_material_from_Ancient_DNA_reveals_multiple_origins_and_migration_waves_of_extinct_Japanese_brown_bear_lineages_/5525200/2 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
https://dx.doi.org/10.1098/rsos.210518 https://dx.doi.org/10.6084/m9.figshare.c.5525200 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5525200.v2 https://doi.org/10.1098/rsos.210518 https://doi.org/10.6084/m9.figshare.c.5525200 |
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1766231702933340160 |