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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Published in:Genome
Main Authors: Beet, Clare Rose, Hogg, Ian D., Collins, Gemma Elyse, Cowan, Don A., Wall, Diana H., Adams, Byron J.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 2016
Subjects:
Online Access:https://hdl.handle.net/10289/10264
https://doi.org/10.1139/gen-2015-0194
id ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/10264
record_format openpolar
spelling ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/10264 2023-07-30T03:59:18+02:00 Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone Beet, Clare Rose Hogg, Ian D. Collins, Gemma Elyse Cowan, Don A. Wall, Diana H. Adams, Byron J. 2016 application/pdf https://hdl.handle.net/10289/10264 https://doi.org/10.1139/gen-2015-0194 en eng Canadian Science Publishing http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2015-0194#.V0Yy3fl9670 Genome Beet, C. R., Hogg, I. D., Collins, G. E., Cowan, D. A., Wall, D. H., & Adams, B. J. (2016). Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone. Genome, 59, 762–770. https://doi.org/10.1139/gen-2015-0194 https://hdl.handle.net/10289/10264 doi:10.1139/gen-2015-0194 Copyright remains with the author(s) or their institution(s). This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Journal Article 2016 ftunivwaikato https://doi.org/10.1139/gen-2015-0194 2023-07-11T17:23:23Z 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 The University of Waikato: Research Commons 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
institution Open Polar
collection The University of Waikato: Research Commons
op_collection_id ftunivwaikato
language English
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.
format Article in Journal/Newspaper
author Beet, Clare Rose
Hogg, Ian D.
Collins, Gemma Elyse
Cowan, Don A.
Wall, Diana H.
Adams, Byron J.
spellingShingle Beet, Clare Rose
Hogg, Ian D.
Collins, Gemma Elyse
Cowan, Don A.
Wall, Diana H.
Adams, Byron J.
Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone
author_facet Beet, Clare Rose
Hogg, Ian D.
Collins, Gemma Elyse
Cowan, Don A.
Wall, Diana H.
Adams, Byron J.
author_sort Beet, Clare Rose
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 https://hdl.handle.net/10289/10264
https://doi.org/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_relation http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2015-0194#.V0Yy3fl9670
Genome
Beet, C. R., Hogg, I. D., Collins, G. E., Cowan, D. A., Wall, D. H., & Adams, B. J. (2016). Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone. Genome, 59, 762–770. https://doi.org/10.1139/gen-2015-0194
https://hdl.handle.net/10289/10264
doi:10.1139/gen-2015-0194
op_rights Copyright remains with the author(s) or their institution(s). This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
op_doi https://doi.org/10.1139/gen-2015-0194
container_title Genome
container_volume 59
container_issue 9
container_start_page 762
op_container_end_page 770
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