The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic
The Arctic is one of the most extreme terrestrial environments on the planet. Here, we present the first chromosome‐scale genome assembly of a plant adapted to the high Arctic, Draba nivalis (Brassicaceae), an attractive model species for studying plant adaptation to the stresses imposed by this har...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983928/ http://www.ncbi.nlm.nih.gov/pubmed/33058468 https://doi.org/10.1111/1755-0998.13280 |
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ftpubmed:oai:pubmedcentral.nih.gov:7983928 2023-05-15T14:30:59+02:00 The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic Nowak, Michael D. Birkeland, Siri Mandáková, Terezie Roy Choudhury, Rimjhim Guo, Xinyi Gustafsson, Anna Lovisa S. Gizaw, Abel Schrøder‐Nielsen, Audun Fracassetti, Marco Brysting, Anne K. Rieseberg, Loren Slotte, Tanja Parisod, Christian Lysak, Martin A. Brochmann, Christian 2020-11-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983928/ http://www.ncbi.nlm.nih.gov/pubmed/33058468 https://doi.org/10.1111/1755-0998.13280 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983928/ http://www.ncbi.nlm.nih.gov/pubmed/33058468 http://dx.doi.org/10.1111/1755-0998.13280 © 2020 The Authors. Molecular Ecology Resources published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Mol Ecol Resour From the Cover Text 2020 ftpubmed https://doi.org/10.1111/1755-0998.13280 2021-03-28T01:43:27Z The Arctic is one of the most extreme terrestrial environments on the planet. Here, we present the first chromosome‐scale genome assembly of a plant adapted to the high Arctic, Draba nivalis (Brassicaceae), an attractive model species for studying plant adaptation to the stresses imposed by this harsh environment. We used an iterative scaffolding strategy with data from short‐reads, single‐molecule long reads, proximity ligation data, and a genetic map to produce a 302 Mb assembly that is highly contiguous with 91.6% assembled into eight chromosomes (the base chromosome number). To identify candidate genes and gene families that may have facilitated adaptation to Arctic environmental stresses, we performed comparative genomic analyses with nine non‐Arctic Brassicaceae species. We show that the D. nivalis genome contains expanded suites of genes associated with drought and cold stress (e.g., related to the maintenance of oxidation‐reduction homeostasis, meiosis, and signaling pathways). The expansions of gene families associated with these functions appear to be driven in part by the activity of transposable elements. Tests of positive selection identify suites of candidate genes associated with meiosis and photoperiodism, as well as cold, drought, and oxidative stress responses. Our results reveal a multifaceted landscape of stress adaptation in the D. nivalis genome, offering avenues for the continued development of this species as an Arctic model plant. Text Arctic draba Arctic PubMed Central (PMC) Arctic Molecular Ecology Resources 21 3 661 676 |
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English |
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From the Cover |
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From the Cover Nowak, Michael D. Birkeland, Siri Mandáková, Terezie Roy Choudhury, Rimjhim Guo, Xinyi Gustafsson, Anna Lovisa S. Gizaw, Abel Schrøder‐Nielsen, Audun Fracassetti, Marco Brysting, Anne K. Rieseberg, Loren Slotte, Tanja Parisod, Christian Lysak, Martin A. Brochmann, Christian The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
topic_facet |
From the Cover |
description |
The Arctic is one of the most extreme terrestrial environments on the planet. Here, we present the first chromosome‐scale genome assembly of a plant adapted to the high Arctic, Draba nivalis (Brassicaceae), an attractive model species for studying plant adaptation to the stresses imposed by this harsh environment. We used an iterative scaffolding strategy with data from short‐reads, single‐molecule long reads, proximity ligation data, and a genetic map to produce a 302 Mb assembly that is highly contiguous with 91.6% assembled into eight chromosomes (the base chromosome number). To identify candidate genes and gene families that may have facilitated adaptation to Arctic environmental stresses, we performed comparative genomic analyses with nine non‐Arctic Brassicaceae species. We show that the D. nivalis genome contains expanded suites of genes associated with drought and cold stress (e.g., related to the maintenance of oxidation‐reduction homeostasis, meiosis, and signaling pathways). The expansions of gene families associated with these functions appear to be driven in part by the activity of transposable elements. Tests of positive selection identify suites of candidate genes associated with meiosis and photoperiodism, as well as cold, drought, and oxidative stress responses. Our results reveal a multifaceted landscape of stress adaptation in the D. nivalis genome, offering avenues for the continued development of this species as an Arctic model plant. |
format |
Text |
author |
Nowak, Michael D. Birkeland, Siri Mandáková, Terezie Roy Choudhury, Rimjhim Guo, Xinyi Gustafsson, Anna Lovisa S. Gizaw, Abel Schrøder‐Nielsen, Audun Fracassetti, Marco Brysting, Anne K. Rieseberg, Loren Slotte, Tanja Parisod, Christian Lysak, Martin A. Brochmann, Christian |
author_facet |
Nowak, Michael D. Birkeland, Siri Mandáková, Terezie Roy Choudhury, Rimjhim Guo, Xinyi Gustafsson, Anna Lovisa S. Gizaw, Abel Schrøder‐Nielsen, Audun Fracassetti, Marco Brysting, Anne K. Rieseberg, Loren Slotte, Tanja Parisod, Christian Lysak, Martin A. Brochmann, Christian |
author_sort |
Nowak, Michael D. |
title |
The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
title_short |
The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
title_full |
The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
title_fullStr |
The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
title_full_unstemmed |
The genome of Draba nivalis shows signatures of adaptation to the extreme environmental stresses of the Arctic |
title_sort |
genome of draba nivalis shows signatures of adaptation to the extreme environmental stresses of the arctic |
publisher |
John Wiley and Sons Inc. |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983928/ http://www.ncbi.nlm.nih.gov/pubmed/33058468 https://doi.org/10.1111/1755-0998.13280 |
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Arctic |
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Arctic |
genre |
Arctic draba Arctic |
genre_facet |
Arctic draba Arctic |
op_source |
Mol Ecol Resour |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983928/ http://www.ncbi.nlm.nih.gov/pubmed/33058468 http://dx.doi.org/10.1111/1755-0998.13280 |
op_rights |
© 2020 The Authors. Molecular Ecology Resources published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/1755-0998.13280 |
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Molecular Ecology Resources |
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21 |
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3 |
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661 |
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676 |
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1766304731602354176 |