Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia
The occurrence of refugia beyond the arctic treeline and genetic adaptation therein play a crucial role of largely unknown effect size. While refugia have potential for rapidly colonizing the tundra under global warming, the taxa may be maladapted to the new environmental conditions. Understanding t...
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ftpubmed:oai:pubmedcentral.nih.gov:7520212 2023-05-15T15:09:30+02:00 Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia Kruse, Stefan Kolmogorov, Aleksey I. Pestryakova, Luidmila A. Herzschuh, Ulrike 2020-08-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7520212/ https://doi.org/10.1002/ece3.6660 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7520212/ http://dx.doi.org/10.1002/ece3.6660 © 2020 The Authors. Ecology and Evolution 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 Ecol Evol Original Research Text 2020 ftpubmed https://doi.org/10.1002/ece3.6660 2020-10-04T00:51:40Z The occurrence of refugia beyond the arctic treeline and genetic adaptation therein play a crucial role of largely unknown effect size. While refugia have potential for rapidly colonizing the tundra under global warming, the taxa may be maladapted to the new environmental conditions. Understanding the genetic composition and age of refugia is thus crucial for predicting any migration response. Here, we genotype 194 larch individuals from an ~1.8 km(2) area in northcentral Siberia on the southern Taimyr Peninsula by applying an assay of 16 nuclear microsatellite markers. For estimating the age of clonal individuals, we counted tree rings at sections along branches to establish a lateral growth rate that was then combined with geographic distance. Findings reveal that the predominant reproduction type is clonal (58.76%) by short distance spreading of ramets. One outlier of clones 1 km apart could have been dispersed by reindeer. In clonal groups and within individuals, we find that somatic mutations accumulate with geographic distance. Clonal groups of two or more individuals are observed. Clonal age estimates regularly suggest individuals as old as 2,200 years, which coincides with a major environmental change that forced a treeline retreat in the region. We conclude that individuals with clonal growth mode were naturally selected as it lowers the likely risk of extinction under a harsh environment. We discuss this legacy from the past that might now be a maladaptation and hinder expansion under currently strongly increasing temperatures. Text Arctic Global warming Taimyr Tundra Siberia PubMed Central (PMC) Arctic Ecology and Evolution 10 18 10017 10030 |
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Original Research Kruse, Stefan Kolmogorov, Aleksey I. Pestryakova, Luidmila A. Herzschuh, Ulrike Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
topic_facet |
Original Research |
description |
The occurrence of refugia beyond the arctic treeline and genetic adaptation therein play a crucial role of largely unknown effect size. While refugia have potential for rapidly colonizing the tundra under global warming, the taxa may be maladapted to the new environmental conditions. Understanding the genetic composition and age of refugia is thus crucial for predicting any migration response. Here, we genotype 194 larch individuals from an ~1.8 km(2) area in northcentral Siberia on the southern Taimyr Peninsula by applying an assay of 16 nuclear microsatellite markers. For estimating the age of clonal individuals, we counted tree rings at sections along branches to establish a lateral growth rate that was then combined with geographic distance. Findings reveal that the predominant reproduction type is clonal (58.76%) by short distance spreading of ramets. One outlier of clones 1 km apart could have been dispersed by reindeer. In clonal groups and within individuals, we find that somatic mutations accumulate with geographic distance. Clonal groups of two or more individuals are observed. Clonal age estimates regularly suggest individuals as old as 2,200 years, which coincides with a major environmental change that forced a treeline retreat in the region. We conclude that individuals with clonal growth mode were naturally selected as it lowers the likely risk of extinction under a harsh environment. We discuss this legacy from the past that might now be a maladaptation and hinder expansion under currently strongly increasing temperatures. |
format |
Text |
author |
Kruse, Stefan Kolmogorov, Aleksey I. Pestryakova, Luidmila A. Herzschuh, Ulrike |
author_facet |
Kruse, Stefan Kolmogorov, Aleksey I. Pestryakova, Luidmila A. Herzschuh, Ulrike |
author_sort |
Kruse, Stefan |
title |
Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
title_short |
Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
title_full |
Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
title_fullStr |
Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
title_full_unstemmed |
Long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern Siberia |
title_sort |
long‐lived larch clones may conserve adaptations that could restrict treeline migration in northern siberia |
publisher |
John Wiley and Sons Inc. |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7520212/ https://doi.org/10.1002/ece3.6660 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming Taimyr Tundra Siberia |
genre_facet |
Arctic Global warming Taimyr Tundra Siberia |
op_source |
Ecol Evol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7520212/ http://dx.doi.org/10.1002/ece3.6660 |
op_rights |
© 2020 The Authors. Ecology and Evolution 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. |
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CC-BY |
op_doi |
https://doi.org/10.1002/ece3.6660 |
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Ecology and Evolution |
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10 |
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18 |
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10017 |
op_container_end_page |
10030 |
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1766340691942703104 |