Multiple late-Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora
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 Antarct...
Published in: | Journal of Biogeography |
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Main Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://curis.ku.dk/portal/da/publications/multiple-latepleistocene-colonisation-events-of-the-antarctic-pearlwort-colobanthus-quitensis-caryophyllaceae-reveal-the-recent-arrival-of-native-antarctic-vascular-flora(7ebd15e2-eb4e-4ce9-a42a-b723d527108f).html https://doi.org/10.1111/jbi.13843 https://curis.ku.dk/ws/files/285795418/Multiple_late_Pleistocene_colonisation_events_of_the_Antarctic_pearlwort_Colobanthus_quitensis_Caryophyllaceae_reveal_the_recent_arrival_of_native_Antarctic_vascular_flora.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/7ebd15e2-eb4e-4ce9-a42a-b723d527108f |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
angiosperm Antarctica biogeography dispersal island pearlwort South America Southern Ocean |
spellingShingle |
angiosperm Antarctica biogeography dispersal island pearlwort South America Southern Ocean 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 |
topic_facet |
angiosperm Antarctica biogeography dispersal island pearlwort South America Southern Ocean |
description |
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 longer-term ... |
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 |
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 |
publishDate |
2020 |
url |
https://curis.ku.dk/portal/da/publications/multiple-latepleistocene-colonisation-events-of-the-antarctic-pearlwort-colobanthus-quitensis-caryophyllaceae-reveal-the-recent-arrival-of-native-antarctic-vascular-flora(7ebd15e2-eb4e-4ce9-a42a-b723d527108f).html https://doi.org/10.1111/jbi.13843 https://curis.ku.dk/ws/files/285795418/Multiple_late_Pleistocene_colonisation_events_of_the_Antarctic_pearlwort_Colobanthus_quitensis_Caryophyllaceae_reveal_the_recent_arrival_of_native_Antarctic_vascular_flora.pdf |
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 |
Biersma , E M , Torres-Díaz , C , Molina-Montenegro , M A , Newsham , K K , Vidal , M A , Collado , G A , Acuña-Rodríguez , I S , Ballesteros , G I , Figueroa , C C , Goodall-Copestake , W P , Leppe , M A , Cuba-Díaz , M , Valladares , M A , Pertierra , L R & Convey , P 2020 , ' Multiple late-Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora ' , Journal of Biogeography , pp. 1663-1673 . https://doi.org/10.1111/jbi.13843 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/jbi.13843 |
container_title |
Journal of Biogeography |
container_volume |
47 |
container_issue |
8 |
container_start_page |
1663 |
op_container_end_page |
1673 |
_version_ |
1801369260134498304 |
spelling |
ftcopenhagenunip:oai:pure.atira.dk:publications/7ebd15e2-eb4e-4ce9-a42a-b723d527108f 2024-06-09T07:40:51+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 2020 application/pdf https://curis.ku.dk/portal/da/publications/multiple-latepleistocene-colonisation-events-of-the-antarctic-pearlwort-colobanthus-quitensis-caryophyllaceae-reveal-the-recent-arrival-of-native-antarctic-vascular-flora(7ebd15e2-eb4e-4ce9-a42a-b723d527108f).html https://doi.org/10.1111/jbi.13843 https://curis.ku.dk/ws/files/285795418/Multiple_late_Pleistocene_colonisation_events_of_the_Antarctic_pearlwort_Colobanthus_quitensis_Caryophyllaceae_reveal_the_recent_arrival_of_native_Antarctic_vascular_flora.pdf eng eng info:eu-repo/semantics/openAccess Biersma , E M , Torres-Díaz , C , Molina-Montenegro , M A , Newsham , K K , Vidal , M A , Collado , G A , Acuña-Rodríguez , I S , Ballesteros , G I , Figueroa , C C , Goodall-Copestake , W P , Leppe , M A , Cuba-Díaz , M , Valladares , M A , Pertierra , L R & Convey , P 2020 , ' Multiple late-Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora ' , Journal of Biogeography , pp. 1663-1673 . https://doi.org/10.1111/jbi.13843 angiosperm Antarctica biogeography dispersal island pearlwort South America Southern Ocean article 2020 ftcopenhagenunip https://doi.org/10.1111/jbi.13843 2024-05-16T11:29:18Z 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 longer-term ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean University of Copenhagen: Research Antarctic Antarctic Peninsula Southern Ocean The Antarctic Journal of Biogeography 47 8 1663 1673 |