Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow
Abstract When populations of a rare species are small, isolated and declining under climate change, some populations may become locally maladapted. Detecting this maladaptation may allow effective rapid conservation interventions, even if based on incomplete knowledge. Population maladaptation may b...
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crwiley:10.1111/eva.12883 2024-06-23T07:51:47+00:00 Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow Borrell, James S. Zohren, Jasmin Nichols, Richard A. Buggs, Richard J. A. Natural Environment Research Council FP7 People: Marie-Curie Actions 2019 http://dx.doi.org/10.1111/eva.12883 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.12883 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.12883 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.12883 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Evolutionary Applications volume 13, issue 1, page 161-175 ISSN 1752-4571 1752-4571 journal-article 2019 crwiley https://doi.org/10.1111/eva.12883 2024-06-11T04:42:35Z Abstract When populations of a rare species are small, isolated and declining under climate change, some populations may become locally maladapted. Detecting this maladaptation may allow effective rapid conservation interventions, even if based on incomplete knowledge. Population maladaptation may be estimated by finding genome–environment associations (GEA) between allele frequencies and environmental variables across a local species range, and identifying populations whose allele frequencies do not fit with these trends. We can then design assisted gene flow strategies for maladapted populations, to adjust their allele frequencies, entailing lower levels of intervention than with undirected conservation action. Here, we investigate this strategy in Scottish populations of the montane plant dwarf birch ( Betula nana ). In genome‐wide restriction site‐associated single nucleotide polymorphism (SNP) data, we found 267 significant associations between SNP loci and environmental variables. We ranked populations by maladaptation estimated using allele frequency deviation from the general trends at these loci; this gave a different prioritization for conservation action than the Shapely Index, which seeks to preserve rare neutral variation. Populations estimated to be maladapted in their allele frequencies at loci associated with annual mean temperature were found to have reduced catkin production. Using an environmental niche modelling (ENM) approach, we found annual mean temperature (35%), and mean diurnal range (15%), to be important predictors of the dwarf birch distribution. Intriguingly, there was a significant correlation between the number of loci associated with each environmental variable in the GEA and the importance of that variable in the ENM. Together, these results suggest that the same environmental variables determine both adaptive genetic variation and species range in Scottish dwarf birch. We suggest an assisted gene flow strategy that aims to maximize the local adaptation of dwarf birch ... Article in Journal/Newspaper Betula nana Dwarf birch Wiley Online Library Evolutionary Applications 13 1 161 175 |
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Wiley Online Library |
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English |
description |
Abstract When populations of a rare species are small, isolated and declining under climate change, some populations may become locally maladapted. Detecting this maladaptation may allow effective rapid conservation interventions, even if based on incomplete knowledge. Population maladaptation may be estimated by finding genome–environment associations (GEA) between allele frequencies and environmental variables across a local species range, and identifying populations whose allele frequencies do not fit with these trends. We can then design assisted gene flow strategies for maladapted populations, to adjust their allele frequencies, entailing lower levels of intervention than with undirected conservation action. Here, we investigate this strategy in Scottish populations of the montane plant dwarf birch ( Betula nana ). In genome‐wide restriction site‐associated single nucleotide polymorphism (SNP) data, we found 267 significant associations between SNP loci and environmental variables. We ranked populations by maladaptation estimated using allele frequency deviation from the general trends at these loci; this gave a different prioritization for conservation action than the Shapely Index, which seeks to preserve rare neutral variation. Populations estimated to be maladapted in their allele frequencies at loci associated with annual mean temperature were found to have reduced catkin production. Using an environmental niche modelling (ENM) approach, we found annual mean temperature (35%), and mean diurnal range (15%), to be important predictors of the dwarf birch distribution. Intriguingly, there was a significant correlation between the number of loci associated with each environmental variable in the GEA and the importance of that variable in the ENM. Together, these results suggest that the same environmental variables determine both adaptive genetic variation and species range in Scottish dwarf birch. We suggest an assisted gene flow strategy that aims to maximize the local adaptation of dwarf birch ... |
author2 |
Natural Environment Research Council FP7 People: Marie-Curie Actions |
format |
Article in Journal/Newspaper |
author |
Borrell, James S. Zohren, Jasmin Nichols, Richard A. Buggs, Richard J. A. |
spellingShingle |
Borrell, James S. Zohren, Jasmin Nichols, Richard A. Buggs, Richard J. A. Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
author_facet |
Borrell, James S. Zohren, Jasmin Nichols, Richard A. Buggs, Richard J. A. |
author_sort |
Borrell, James S. |
title |
Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
title_short |
Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
title_full |
Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
title_fullStr |
Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
title_full_unstemmed |
Genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
title_sort |
genomic assessment of local adaptation in dwarf birch to inform assisted gene flow |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/eva.12883 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feva.12883 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.12883 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eva.12883 |
genre |
Betula nana Dwarf birch |
genre_facet |
Betula nana Dwarf birch |
op_source |
Evolutionary Applications volume 13, issue 1, page 161-175 ISSN 1752-4571 1752-4571 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/eva.12883 |
container_title |
Evolutionary Applications |
container_volume |
13 |
container_issue |
1 |
container_start_page |
161 |
op_container_end_page |
175 |
_version_ |
1802642924721143808 |