Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora
Abstract Aim Antarctica's remote and extreme terrestrial environments are inhabited by only two species of native vascular plants. We assessed genetic connectivity amongst Antarctic and South American populations of one of these species, Colobanthus quitensis , to determine its origin and age i...
Published in: | Journal of Biogeography |
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Online Access: | http://dx.doi.org/10.1111/jbi.13843 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13843 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13843 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.13843 |
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crwiley:10.1111/jbi.13843 2024-06-23T07:47:19+00:00 Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora Biersma, Elisabeth M. Torres‐Díaz, Cristian Molina‐Montenegro, Marco A. Newsham, Kevin. K. Vidal, Marcela A. Collado, Gonzalo A. Acuña‐Rodríguez, Ian S. Ballesteros, Gabriel I. Figueroa, Christian C. Goodall‐Copestake, William P. Leppe, Marcelo A. Cuba‐Díaz, Marely Valladares, Moisés A. Pertierra, Luis R. Convey, Peter British Antarctic Survey 2020 http://dx.doi.org/10.1111/jbi.13843 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13843 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13843 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.13843 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Journal of Biogeography volume 47, issue 8, page 1663-1673 ISSN 0305-0270 1365-2699 journal-article 2020 crwiley https://doi.org/10.1111/jbi.13843 2024-06-06T04:22:06Z Abstract Aim Antarctica's remote and extreme terrestrial environments are inhabited by only two species of native vascular plants. We assessed genetic connectivity amongst Antarctic and South American populations of one of these species, Colobanthus quitensis , to determine its origin and age in Antarctica. Location Maritime Antarctic, sub‐Antarctic islands, South America. Taxon Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae). Methods Four chloroplast markers and one nuclear marker were sequenced from 270 samples from a latitudinal transect spanning 21–68° S. Phylogeographic, population genetic and molecular dating analyses were used to assess the demographic history of C. quitensis and the age of the species in Antarctica. Results Maritime Antarctic populations consisted of two different haplotype clusters, occupying the northern and southern Maritime Antarctic. Molecular dating analyses suggested C. quitensis to be a young (<1 Ma) species, with contemporary population structure derived since the late‐Pleistocene. Main conclusions. The Maritime Antarctic populations likely derived from two independent, late‐Pleistocene dispersal events. Both clusters shared haplotypes with sub‐Antarctic South Georgia, suggesting higher connectivity across the Southern Ocean than previously thought. The overall findings of multiple colonization events by a vascular plant species to Antarctica, and the recent timing of these events, are of significance with respect to future colonizations of the Antarctic Peninsula by vascular plants, particularly with predicted increases in ice‐free land in this area. This study fills a significant gap in our knowledge of the age of the contemporary Antarctic terrestrial biota. Adding to previous inferences on the other Antarctic vascular plant species (the grass Deschampsia antarctica ), we suggest that both angiosperm species are likely to have arrived on a recent (late‐Pleistocene) time‐scale. While most major groups of Antarctic terrestrial biota include examples of much ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean Wiley Online Library Antarctic Antarctic Peninsula Southern Ocean The Antarctic Journal of Biogeography 47 8 1663 1673 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Aim Antarctica's remote and extreme terrestrial environments are inhabited by only two species of native vascular plants. We assessed genetic connectivity amongst Antarctic and South American populations of one of these species, Colobanthus quitensis , to determine its origin and age in Antarctica. Location Maritime Antarctic, sub‐Antarctic islands, South America. Taxon Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae). Methods Four chloroplast markers and one nuclear marker were sequenced from 270 samples from a latitudinal transect spanning 21–68° S. Phylogeographic, population genetic and molecular dating analyses were used to assess the demographic history of C. quitensis and the age of the species in Antarctica. Results Maritime Antarctic populations consisted of two different haplotype clusters, occupying the northern and southern Maritime Antarctic. Molecular dating analyses suggested C. quitensis to be a young (<1 Ma) species, with contemporary population structure derived since the late‐Pleistocene. Main conclusions. The Maritime Antarctic populations likely derived from two independent, late‐Pleistocene dispersal events. Both clusters shared haplotypes with sub‐Antarctic South Georgia, suggesting higher connectivity across the Southern Ocean than previously thought. The overall findings of multiple colonization events by a vascular plant species to Antarctica, and the recent timing of these events, are of significance with respect to future colonizations of the Antarctic Peninsula by vascular plants, particularly with predicted increases in ice‐free land in this area. This study fills a significant gap in our knowledge of the age of the contemporary Antarctic terrestrial biota. Adding to previous inferences on the other Antarctic vascular plant species (the grass Deschampsia antarctica ), we suggest that both angiosperm species are likely to have arrived on a recent (late‐Pleistocene) time‐scale. While most major groups of Antarctic terrestrial biota include examples of much ... |
author2 |
British Antarctic Survey |
format |
Article in Journal/Newspaper |
author |
Biersma, Elisabeth M. Torres‐Díaz, Cristian Molina‐Montenegro, Marco A. Newsham, Kevin. K. Vidal, Marcela A. Collado, Gonzalo A. Acuña‐Rodríguez, Ian S. Ballesteros, Gabriel I. Figueroa, Christian C. Goodall‐Copestake, William P. Leppe, Marcelo A. Cuba‐Díaz, Marely Valladares, Moisés A. Pertierra, Luis R. Convey, Peter |
spellingShingle |
Biersma, Elisabeth M. Torres‐Díaz, Cristian Molina‐Montenegro, Marco A. Newsham, Kevin. K. Vidal, Marcela A. Collado, Gonzalo A. Acuña‐Rodríguez, Ian S. Ballesteros, Gabriel I. Figueroa, Christian C. Goodall‐Copestake, William P. Leppe, Marcelo A. Cuba‐Díaz, Marely Valladares, Moisés A. Pertierra, Luis R. Convey, Peter Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
author_facet |
Biersma, Elisabeth M. Torres‐Díaz, Cristian Molina‐Montenegro, Marco A. Newsham, Kevin. K. Vidal, Marcela A. Collado, Gonzalo A. Acuña‐Rodríguez, Ian S. Ballesteros, Gabriel I. Figueroa, Christian C. Goodall‐Copestake, William P. Leppe, Marcelo A. Cuba‐Díaz, Marely Valladares, Moisés A. Pertierra, Luis R. Convey, Peter |
author_sort |
Biersma, Elisabeth M. |
title |
Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
title_short |
Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
title_full |
Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
title_fullStr |
Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
title_full_unstemmed |
Multiple late‐Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis(Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora |
title_sort |
multiple late‐pleistocene colonisation events of the antarctic pearlwort colobanthus quitensis(caryophyllaceae) reveal the recent arrival of native antarctic vascular flora |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/jbi.13843 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13843 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13843 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.13843 |
geographic |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
op_source |
Journal of Biogeography volume 47, issue 8, page 1663-1673 ISSN 0305-0270 1365-2699 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/jbi.13843 |
container_title |
Journal of Biogeography |
container_volume |
47 |
container_issue |
8 |
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1663 |
op_container_end_page |
1673 |
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1802651406822277120 |