Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant
PREMISE OF THE STUDY: Many arctic-alpine species have vast geographic ranges, but these may encompass substantial gaps whose origins are poorly understood. Here we address the phylogeographic history of Silene acaulis, a perennial cushion plant with a circumpolar distribution except for a large gap...
Published in: | American Journal of Botany |
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Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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2015
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Online Access: | https://doi.org/10.3732/ajb.1500072 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1500072 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1500072/fullpdf https://bsapubs.onlinelibrary.wiley.com/doi/pdfdirect/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1500072 https://www.ncbi.nlm.nih.gov/pubmed/26437887 http://europepmc.org/abstract/MED/26437887 https://www.cabdirect.org/cabdirect/abstract/20153378015 https://academic.microsoft.com/#/detail/2237413578 |
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geo envir Geraldine A. Allen Yulia Mikhaylova Galina Gussarova Christian Brochmann Virginia Mirré Kendrick L. Marr Laurie J. McCormick Richard J. Hebda Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
topic_facet |
geo envir |
description |
PREMISE OF THE STUDY: Many arctic-alpine species have vast geographic ranges, but these may encompass substantial gaps whose origins are poorly understood. Here we address the phylogeographic history of Silene acaulis, a perennial cushion plant with a circumpolar distribution except for a large gap in Siberia. METHODS: We assessed genetic variation in a range-wide sample of 103 populations using plastid DNA (pDNA) sequences and AFLPs (amplified fragment length polymorphisms). We constructed a haplotype network and performed Bayesian phylogenetic analyses based on plastid sequences. We visualized AFLP patterns using principal coordinate analysis, identified genetic groups using the program structure, and estimated genetic diversity and rarity indices by geographic region. KEY RESULTS: The history of the main pDNA lineages was estimated to span several glaciations. AFLP data revealed a distinct division between Beringia/North America and Europe/East Greenland. These two regions shared only one of 17 pDNA haplotypes. Populations on opposite sides of the Siberian range gap (Ural Mountains and Chukotka) were genetically distinct and appear to have resulted from postglacial leading-edge colonizations. We inferred two refugia in North America (Beringia and the southern Rocky Mountains) and two in Europe (central-southern Europe and northern Europe/East Greenland). Patterns in the East Atlantic region suggested transoceanic long-distance dispersal events. CONCLUSIONS: Silene acaulis has a highly dynamic history characterized by vicariance, regional extinction, and recolonization, with persistence in at least four refugia. Long-distance dispersal explains patterns across the Atlantic Ocean, but we found no evidence of dispersal across the Siberian range gap. |
format |
Article in Journal/Newspaper |
author |
Geraldine A. Allen Yulia Mikhaylova Galina Gussarova Christian Brochmann Virginia Mirré Kendrick L. Marr Laurie J. McCormick Richard J. Hebda |
author_facet |
Geraldine A. Allen Yulia Mikhaylova Galina Gussarova Christian Brochmann Virginia Mirré Kendrick L. Marr Laurie J. McCormick Richard J. Hebda |
author_sort |
Geraldine A. Allen |
title |
Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
title_short |
Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
title_full |
Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
title_fullStr |
Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
title_full_unstemmed |
Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
title_sort |
vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant |
publisher |
(:unav) |
publishDate |
2015 |
url |
https://doi.org/10.3732/ajb.1500072 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1500072 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1500072/fullpdf https://bsapubs.onlinelibrary.wiley.com/doi/pdfdirect/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1500072 https://www.ncbi.nlm.nih.gov/pubmed/26437887 http://europepmc.org/abstract/MED/26437887 https://www.cabdirect.org/cabdirect/abstract/20153378015 https://academic.microsoft.com/#/detail/2237413578 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Chukotka East Greenland Greenland Silene acaulis ural mountains Beringia Siberia |
genre_facet |
Arctic Chukotka East Greenland Greenland Silene acaulis ural mountains Beringia Siberia |
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American Journal of Botany |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::0b5a64ec3cc82dd221f3636033ce4871 2023-05-15T14:59:56+02:00 Vicariance, long-distance dispersal, and regional extinction-recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant Geraldine A. Allen Yulia Mikhaylova Galina Gussarova Christian Brochmann Virginia Mirré Kendrick L. Marr Laurie J. McCormick Richard J. Hebda 2015-10-01 https://doi.org/10.3732/ajb.1500072 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1500072 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1500072/fullpdf https://bsapubs.onlinelibrary.wiley.com/doi/pdfdirect/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1500072 https://www.ncbi.nlm.nih.gov/pubmed/26437887 http://europepmc.org/abstract/MED/26437887 https://www.cabdirect.org/cabdirect/abstract/20153378015 https://academic.microsoft.com/#/detail/2237413578 undefined unknown (:unav) http://dx.doi.org/10.3732/ajb.1500072 https://dx.doi.org/10.3732/ajb.1500072 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1500072 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1500072/fullpdf https://bsapubs.onlinelibrary.wiley.com/doi/pdfdirect/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.1500072 https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1500072 https://www.ncbi.nlm.nih.gov/pubmed/26437887 http://europepmc.org/abstract/MED/26437887 https://www.cabdirect.org/cabdirect/abstract/20153378015 https://academic.microsoft.com/#/detail/2237413578 undefined 10.3732/ajb.1500072 26437887 2237413578 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::4461e744d5fcc0a2c1386e551eed569a 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2015 fttriple https://doi.org/10.3732/ajb.1500072 2023-01-22T17:08:20Z PREMISE OF THE STUDY: Many arctic-alpine species have vast geographic ranges, but these may encompass substantial gaps whose origins are poorly understood. Here we address the phylogeographic history of Silene acaulis, a perennial cushion plant with a circumpolar distribution except for a large gap in Siberia. METHODS: We assessed genetic variation in a range-wide sample of 103 populations using plastid DNA (pDNA) sequences and AFLPs (amplified fragment length polymorphisms). We constructed a haplotype network and performed Bayesian phylogenetic analyses based on plastid sequences. We visualized AFLP patterns using principal coordinate analysis, identified genetic groups using the program structure, and estimated genetic diversity and rarity indices by geographic region. KEY RESULTS: The history of the main pDNA lineages was estimated to span several glaciations. AFLP data revealed a distinct division between Beringia/North America and Europe/East Greenland. These two regions shared only one of 17 pDNA haplotypes. Populations on opposite sides of the Siberian range gap (Ural Mountains and Chukotka) were genetically distinct and appear to have resulted from postglacial leading-edge colonizations. We inferred two refugia in North America (Beringia and the southern Rocky Mountains) and two in Europe (central-southern Europe and northern Europe/East Greenland). Patterns in the East Atlantic region suggested transoceanic long-distance dispersal events. CONCLUSIONS: Silene acaulis has a highly dynamic history characterized by vicariance, regional extinction, and recolonization, with persistence in at least four refugia. Long-distance dispersal explains patterns across the Atlantic Ocean, but we found no evidence of dispersal across the Siberian range gap. Article in Journal/Newspaper Arctic Chukotka East Greenland Greenland Silene acaulis ural mountains Beringia Siberia Unknown Arctic Greenland American Journal of Botany 102 10 1703 1720 |