Genetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotone

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dc.contributor.authorBeet, Clare Roseen_NZ
dc.contributor.authorHogg, Ian D.en_NZ
dc.contributor.authorCollins, Gemma Elyseen_NZ
dc.contributor.authorCowan, Don A.en_NZ
dc.contributor.authorWall, Diana H.en_NZ
dc.contributor.authorAdams, Byron J.en_NZ
dc.date.accessioned2016-05-26T02:21:26Z
dc.date.available2016en_NZ
dc.date.available2016-05-26T02:21:26Z
dc.date.issued2016en_NZ
dc.description.abstractClimate 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.en_NZ
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dc.identifier.citationBeet, 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-2015-0194en
dc.identifier.doi10.1139/gen-2015-0194en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/10264
dc.language.isoen
dc.publisherCanadian Science Publishingen_NZ
dc.relation.isPartOfGenomeen_NZ
dc.relation.urihttp://www.nrcresearchpress.com/doi/abs/10.1139/gen-2015-0194#.V0Yy3fl9670en_NZ
dc.rightsCopyright 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.
dc.titleGenetic diversity among populations of Antarctic springtails (Collembola) within the Mackay Glacier ecotoneen_NZ
dc.typeJournal Article
pubs.begin-page762
pubs.elements-id138884
pubs.end-page770
pubs.notesEBSCOhost confirms peer revieweden_NZ
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/School of Science
pubs.volume59
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