Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall)
Due to climate change, the ranges of many North American tree species are expected to shift northward. Sugar maple (Acer saccharum Marshall) reaches its northern continuous distributional limit in northeastern North America at the transition between boreal mixed‐wood and temperate deciduous forests....
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ftpubmed:oai:pubmedcentral.nih.gov:5838051 2023-05-15T16:41:16+02:00 Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) Graignic, Noémie Tremblay, Francine Bergeron, Yves 2018-02-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838051/ http://www.ncbi.nlm.nih.gov/pubmed/29531693 https://doi.org/10.1002/ece3.3906 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838051/ http://www.ncbi.nlm.nih.gov/pubmed/29531693 http://dx.doi.org/10.1002/ece3.3906 © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (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 Original Research Text 2018 ftpubmed https://doi.org/10.1002/ece3.3906 2018-03-18T01:12:31Z Due to climate change, the ranges of many North American tree species are expected to shift northward. Sugar maple (Acer saccharum Marshall) reaches its northern continuous distributional limit in northeastern North America at the transition between boreal mixed‐wood and temperate deciduous forests. We hypothesized that marginal fragmented northern populations from the boreal mixed wood would have a distinct pattern of genetic structure and diversity. We analyzed variation at 18 microsatellite loci from 23 populations distributed along three latitudinal transects (west, central, and east) that encompass the continuous–discontinuous species range. Each transect was divided into two zones, continuous (temperate deciduous) and discontinuous (boreal mixed wood), based on sugar maple stand abundance. Respective positive and negative relationships were found between the distance of each population to the northern limit (D_north), and allelic richness (A R) and population differentiation (F ST). These relations were tested for each transect separately; the pattern (discontinuous–continuous) remained significant only for the western transect. structure analysis revealed the presence of four clusters. The most northern populations of each transect were assigned to a distinct group. Asymmetrical gene flow occurred from the southern into the four northernmost populations. Southern populations in Québec may have originated from two different postglacial migration routes. No evidence was found to validate the hypothesis that northern populations were remnants of a larger population that had migrated further north of the species range after the retreat of the ice sheet. The northernmost sugar maple populations possibly originated from long‐distance dispersal. Text Ice Sheet PubMed Central (PMC) Ecology and Evolution 8 5 2766 2780 |
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Original Research Graignic, Noémie Tremblay, Francine Bergeron, Yves Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
topic_facet |
Original Research |
description |
Due to climate change, the ranges of many North American tree species are expected to shift northward. Sugar maple (Acer saccharum Marshall) reaches its northern continuous distributional limit in northeastern North America at the transition between boreal mixed‐wood and temperate deciduous forests. We hypothesized that marginal fragmented northern populations from the boreal mixed wood would have a distinct pattern of genetic structure and diversity. We analyzed variation at 18 microsatellite loci from 23 populations distributed along three latitudinal transects (west, central, and east) that encompass the continuous–discontinuous species range. Each transect was divided into two zones, continuous (temperate deciduous) and discontinuous (boreal mixed wood), based on sugar maple stand abundance. Respective positive and negative relationships were found between the distance of each population to the northern limit (D_north), and allelic richness (A R) and population differentiation (F ST). These relations were tested for each transect separately; the pattern (discontinuous–continuous) remained significant only for the western transect. structure analysis revealed the presence of four clusters. The most northern populations of each transect were assigned to a distinct group. Asymmetrical gene flow occurred from the southern into the four northernmost populations. Southern populations in Québec may have originated from two different postglacial migration routes. No evidence was found to validate the hypothesis that northern populations were remnants of a larger population that had migrated further north of the species range after the retreat of the ice sheet. The northernmost sugar maple populations possibly originated from long‐distance dispersal. |
format |
Text |
author |
Graignic, Noémie Tremblay, Francine Bergeron, Yves |
author_facet |
Graignic, Noémie Tremblay, Francine Bergeron, Yves |
author_sort |
Graignic, Noémie |
title |
Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
title_short |
Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
title_full |
Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
title_fullStr |
Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
title_full_unstemmed |
Influence of northern limit range on genetic diversity and structure in a widespread North American tree, sugar maple (Acer saccharum Marshall) |
title_sort |
influence of northern limit range on genetic diversity and structure in a widespread north american tree, sugar maple (acer saccharum marshall) |
publisher |
John Wiley and Sons Inc. |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838051/ http://www.ncbi.nlm.nih.gov/pubmed/29531693 https://doi.org/10.1002/ece3.3906 |
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Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838051/ http://www.ncbi.nlm.nih.gov/pubmed/29531693 http://dx.doi.org/10.1002/ece3.3906 |
op_rights |
© 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1002/ece3.3906 |
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Ecology and Evolution |
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8 |
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5 |
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2766 |
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2780 |
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1766031697856430080 |