Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae)
Polyploidy among plants is most frequent in the arctic, where glaciation cycles put selective pressures on populations by repeated fragmentation and fluctuation in climate. Polyploids should have been more fit in the novel habitats created as glaciers receded because of increased genetic material an...
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Online Access: | http://dx.doi.org/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjb-2018-0027 |
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crcansciencepubl:10.1139/cjb-2018-0027 2023-12-17T10:25:30+01:00 Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) Mastin, Jared E. Anthamatten, Peter Bruederle, Leo P. 2018 http://dx.doi.org/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjb-2018-0027 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Botany volume 96, issue 12, page 813-823 ISSN 1916-2790 1916-2804 Plant Science Ecology Ecology, Evolution, Behavior and Systematics journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjb-2018-0027 2023-11-19T13:39:21Z Polyploidy among plants is most frequent in the arctic, where glaciation cycles put selective pressures on populations by repeated fragmentation and fluctuation in climate. Polyploids should have been more fit in the novel habitats created as glaciers receded because of increased genetic material and novel gene products, which results in phenotypic plasticity and rapid adaptation. Higher ploidy is then expected to confer a broader tolerance of environmental conditions. Eutrema edwardsii R. Br. (Brassicaceae) is an arctic-alpine mustard with a near circumpolar distribution that occurs as a tetraploid, hexaploid, and octaploid. We used flow cytometry to document the distribution of polyploid cytotypes using herbarium tissue, and modeled the niche of each cytotype to test for niche differentiation. Flow cytometry revealed four cytotypes among 85 individuals. Notably, 60% of the herbarium tissue assays were successful using tissue up to 50 years old. Principle components analysis was performed on 20 climatic variables, of which, the first four axes were used as environmental variables for niche modeling. Niche models were created for tetraploid and hexaploid populations and used to calculate niche overlap (Shoener’s D). Overlap between tetraploid and hexaploid models (D = 0.534) is lower than the null distribution (D = 0.681–0.944) supporting the hypothesis of niche divergence. Article in Journal/Newspaper Arctic Canadian Science Publishing (via Crossref) Arctic Botany 96 12 813 823 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics Mastin, Jared E. Anthamatten, Peter Bruederle, Leo P. Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
topic_facet |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
description |
Polyploidy among plants is most frequent in the arctic, where glaciation cycles put selective pressures on populations by repeated fragmentation and fluctuation in climate. Polyploids should have been more fit in the novel habitats created as glaciers receded because of increased genetic material and novel gene products, which results in phenotypic plasticity and rapid adaptation. Higher ploidy is then expected to confer a broader tolerance of environmental conditions. Eutrema edwardsii R. Br. (Brassicaceae) is an arctic-alpine mustard with a near circumpolar distribution that occurs as a tetraploid, hexaploid, and octaploid. We used flow cytometry to document the distribution of polyploid cytotypes using herbarium tissue, and modeled the niche of each cytotype to test for niche differentiation. Flow cytometry revealed four cytotypes among 85 individuals. Notably, 60% of the herbarium tissue assays were successful using tissue up to 50 years old. Principle components analysis was performed on 20 climatic variables, of which, the first four axes were used as environmental variables for niche modeling. Niche models were created for tetraploid and hexaploid populations and used to calculate niche overlap (Shoener’s D). Overlap between tetraploid and hexaploid models (D = 0.534) is lower than the null distribution (D = 0.681–0.944) supporting the hypothesis of niche divergence. |
format |
Article in Journal/Newspaper |
author |
Mastin, Jared E. Anthamatten, Peter Bruederle, Leo P. |
author_facet |
Mastin, Jared E. Anthamatten, Peter Bruederle, Leo P. |
author_sort |
Mastin, Jared E. |
title |
Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
title_short |
Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
title_full |
Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
title_fullStr |
Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
title_full_unstemmed |
Climatic niche modeling reveals divergence between cytotypes in Eutrema edwardsii (Brassicaceae) |
title_sort |
climatic niche modeling reveals divergence between cytotypes in eutrema edwardsii (brassicaceae) |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjb-2018-0027 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjb-2018-0027 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Botany volume 96, issue 12, page 813-823 ISSN 1916-2790 1916-2804 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjb-2018-0027 |
container_title |
Botany |
container_volume |
96 |
container_issue |
12 |
container_start_page |
813 |
op_container_end_page |
823 |
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1785577126960824320 |