Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone
Climate changes are likely to have major influences on the distribution and abundance of Antarctic terrestrial biota. To assess arthropod distribution and diversity within the Ross Sea region, we examined mitochondrial DNA (COI) sequences for three currently recognized species of springtail (Collemb...
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Online Access: | http://dx.doi.org/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/full-xml/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/pdf/10.1139/gen-2015-0194 |
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crcansciencepubl:10.1139/gen-2015-0194 2023-12-17T10:21:24+01:00 Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone Beet, Clare R. Hogg, Ian D. Collins, Gemma E. Cowan, Don A. Wall, Diana H. Adams, Byron J. Wilson, John-James 2016 http://dx.doi.org/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/full-xml/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/pdf/10.1139/gen-2015-0194 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Genome volume 59, issue 9, page 762-770 ISSN 0831-2796 1480-3321 Genetics Molecular Biology General Medicine Biotechnology journal-article 2016 crcansciencepubl https://doi.org/10.1139/gen-2015-0194 2023-11-19T13:38:15Z Climate changes are likely to have major influences on the distribution and abundance of Antarctic terrestrial biota. To assess arthropod distribution and diversity within the Ross Sea region, we examined mitochondrial DNA (COI) sequences for three currently recognized species of springtail (Collembola) collected from sites in the vicinity, and to the north of, the Mackay Glacier (77°S). This area acts as a transition between two biogeographic regions (northern and southern Victoria Land). We found populations of highly divergent individuals (5%–11.3% intraspecific sequence divergence) for each of the three putative springtail species, suggesting the possibility of cryptic diversity. Based on molecular clock estimates, these divergent lineages are likely to have been isolated for 3–5 million years. It was during this time that the Western Antarctic Ice Sheet (WAIS) was likely to have completely collapsed, potentially facilitating springtail dispersal via rafting on running waters and open seaways. The reformation of the WAIS would have isolated newly established populations, with subsequent dispersal restricted by glaciers and ice-covered areas. Given the currently limited distributions for these genetically divergent populations, any future changes in species’ distributions can be easily tracked through the DNA barcoding of springtails from within the Mackay Glacier ecotone. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Ross Sea Victoria Land ice covered areas Springtail Canadian Science Publishing (via Crossref) Antarctic Ross Sea Victoria Land Mackay ENVELOPE(168.517,168.517,-77.700,-77.700) Mackay Glacier ENVELOPE(162.000,162.000,-76.967,-76.967) Genome 59 9 762 770 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
language |
English |
topic |
Genetics Molecular Biology General Medicine Biotechnology |
spellingShingle |
Genetics Molecular Biology General Medicine Biotechnology Beet, Clare R. Hogg, Ian D. Collins, Gemma E. Cowan, Don A. Wall, Diana H. Adams, Byron J. Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
topic_facet |
Genetics Molecular Biology General Medicine Biotechnology |
description |
Climate changes are likely to have major influences on the distribution and abundance of Antarctic terrestrial biota. To assess arthropod distribution and diversity within the Ross Sea region, we examined mitochondrial DNA (COI) sequences for three currently recognized species of springtail (Collembola) collected from sites in the vicinity, and to the north of, the Mackay Glacier (77°S). This area acts as a transition between two biogeographic regions (northern and southern Victoria Land). We found populations of highly divergent individuals (5%–11.3% intraspecific sequence divergence) for each of the three putative springtail species, suggesting the possibility of cryptic diversity. Based on molecular clock estimates, these divergent lineages are likely to have been isolated for 3–5 million years. It was during this time that the Western Antarctic Ice Sheet (WAIS) was likely to have completely collapsed, potentially facilitating springtail dispersal via rafting on running waters and open seaways. The reformation of the WAIS would have isolated newly established populations, with subsequent dispersal restricted by glaciers and ice-covered areas. Given the currently limited distributions for these genetically divergent populations, any future changes in species’ distributions can be easily tracked through the DNA barcoding of springtails from within the Mackay Glacier ecotone. |
author2 |
Wilson, John-James |
format |
Article in Journal/Newspaper |
author |
Beet, Clare R. Hogg, Ian D. Collins, Gemma E. Cowan, Don A. Wall, Diana H. Adams, Byron J. |
author_facet |
Beet, Clare R. Hogg, Ian D. Collins, Gemma E. Cowan, Don A. Wall, Diana H. Adams, Byron J. |
author_sort |
Beet, Clare R. |
title |
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
title_short |
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
title_full |
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
title_fullStr |
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
title_full_unstemmed |
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone |
title_sort |
genetic diversity among populations of antarctic springtails (collembola) within the mackay glacier ecotone |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
http://dx.doi.org/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/full-xml/10.1139/gen-2015-0194 http://www.nrcresearchpress.com/doi/pdf/10.1139/gen-2015-0194 |
long_lat |
ENVELOPE(168.517,168.517,-77.700,-77.700) ENVELOPE(162.000,162.000,-76.967,-76.967) |
geographic |
Antarctic Ross Sea Victoria Land Mackay Mackay Glacier |
geographic_facet |
Antarctic Ross Sea Victoria Land Mackay Mackay Glacier |
genre |
Antarc* Antarctic Ice Sheet Ross Sea Victoria Land ice covered areas Springtail |
genre_facet |
Antarc* Antarctic Ice Sheet Ross Sea Victoria Land ice covered areas Springtail |
op_source |
Genome volume 59, issue 9, page 762-770 ISSN 0831-2796 1480-3321 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/gen-2015-0194 |
container_title |
Genome |
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59 |
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9 |
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762 |
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770 |
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1785533960493727744 |