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Glacial survival of boreal trees in northern Scandinavia

Glacial survival of boreal trees in northern Scandinavia
Glacial survival of boreal trees in northern Scandinavia
It is commonly believed that trees were absent in Scandinavia during the last glaciation and first recolonized the Scandinavian Peninsula with the retreat of its ice sheet some 9000 years ago. Here, we show the presence of a rare mitochondrial DNA haplotype of spruce that appears unique to Scandinavia and with its highest frequency to the west—an area believed to sustain ice-free refugia during most of the last ice age. We further show the survival of DNA from this haplotype in lake sediments and pollen of Trøndelag in central Norway dating back ~10,300 years and chloroplast DNA of pine and spruce in lake sediments adjacent to the ice-free Andøya refugium in northwestern Norway as early as ~22,000 and 17,700 years ago, respectively. Our findings imply that conifer trees survived in ice-free refugia of Scandinavia during the last glaciation, challenging current views on survival and spread of trees as a response to climate changes
0036-8075
1083-1086
Parducci, L.
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Jorgensen, T.
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Tollefsrud, M. M.
6687ce39-8d89-4ad8-9f05-659831a31551
Elverland, E.
357aa16e-759e-4399-a1ac-54b9c410fe0d
Alm, T.
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Fontana, S. L.
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Bennett, K. D.
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Haile, J.
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Matetovici, I.
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Suyama, Y.
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Edwards, M. E.
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Andersen, K.
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Rasmussen, M.
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Boessenkool, S.
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Coissac, E.
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Brochmann, C.
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Taberlet, P.
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Houmark-Nielsen, M.
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Larsen, N. K.
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Orlando, L.
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Gilbert, M. T. P.
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Kjaer, K. H.
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Alsos, I. G.
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Willerslev, E.
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Parducci, L.
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Jorgensen, T.
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Tollefsrud, M. M.
6687ce39-8d89-4ad8-9f05-659831a31551
Elverland, E.
357aa16e-759e-4399-a1ac-54b9c410fe0d
Alm, T.
cc94869e-ae41-4187-95e0-0d1a1cac10b0
Fontana, S. L.
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Bennett, K. D.
c244a9c9-f7ca-448b-9599-81d2e83e3cb6
Haile, J.
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Matetovici, I.
dfa55a5a-6f37-4ea5-a28d-feea31f415b5
Suyama, Y.
12a6a367-7112-461b-a742-490a835fb4a1
Edwards, M. E.
4b6a3389-f3a4-4933-b8fd-acdfef72200e
Andersen, K.
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Rasmussen, M.
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Boessenkool, S.
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Coissac, E.
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Brochmann, C.
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Taberlet, P.
6a78b0f0-0afd-493c-bf0d-2cef54997c05
Houmark-Nielsen, M.
cf039e23-2962-43ee-9aef-36eee0e99dc1
Larsen, N. K.
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Orlando, L.
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Gilbert, M. T. P.
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Kjaer, K. H.
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Alsos, I. G.
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Willerslev, E.
a8fd6b59-f601-4ffa-a87d-70596b4a1fe2

Parducci, L., Jorgensen, T., Tollefsrud, M. M., Elverland, E., Alm, T., Fontana, S. L., Bennett, K. D., Haile, J., Matetovici, I., Suyama, Y., Edwards, M. E., Andersen, K., Rasmussen, M., Boessenkool, S., Coissac, E., Brochmann, C., Taberlet, P., Houmark-Nielsen, M., Larsen, N. K., Orlando, L., Gilbert, M. T. P., Kjaer, K. H., Alsos, I. G. and Willerslev, E. (2012) Glacial survival of boreal trees in northern Scandinavia. Science, 335 (6072), 1083-1086. (doi:10.1126/science.1216043).

Record type: Article

Abstract

It is commonly believed that trees were absent in Scandinavia during the last glaciation and first recolonized the Scandinavian Peninsula with the retreat of its ice sheet some 9000 years ago. Here, we show the presence of a rare mitochondrial DNA haplotype of spruce that appears unique to Scandinavia and with its highest frequency to the west—an area believed to sustain ice-free refugia during most of the last ice age. We further show the survival of DNA from this haplotype in lake sediments and pollen of Trøndelag in central Norway dating back ~10,300 years and chloroplast DNA of pine and spruce in lake sediments adjacent to the ice-free Andøya refugium in northwestern Norway as early as ~22,000 and 17,700 years ago, respectively. Our findings imply that conifer trees survived in ice-free refugia of Scandinavia during the last glaciation, challenging current views on survival and spread of trees as a response to climate changes

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More information

Published date: March 2012
Organisations: Palaeoenvironment Laboratory (PLUS)

Identifiers

Local EPrints ID: 338924
URI: http://eprints.soton.ac.uk/id/eprint/338924
ISSN: 0036-8075
PURE UUID: d7756940-9be2-4184-a202-eab810383a84
ORCID for M. E. Edwards: ORCID iD orcid.org/0000-0002-3490-6682

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Date deposited: 17 May 2012 14:04
Last modified: 15 Mar 2024 03:13

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Contributors

Author: L. Parducci
Author: T. Jorgensen
Author: M. M. Tollefsrud
Author: E. Elverland
Author: T. Alm
Author: S. L. Fontana
Author: K. D. Bennett
Author: J. Haile
Author: I. Matetovici
Author: Y. Suyama
Author: M. E. Edwards ORCID iD
Author: K. Andersen
Author: M. Rasmussen
Author: S. Boessenkool
Author: E. Coissac
Author: C. Brochmann
Author: P. Taberlet
Author: M. Houmark-Nielsen
Author: N. K. Larsen
Author: L. Orlando
Author: M. T. P. Gilbert
Author: K. H. Kjaer
Author: I. G. Alsos
Author: E. Willerslev

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