Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica
Aim: We examined the genetic structure among populations and regions for the springtails Cryptopygus antarcticus antarcticus and Gomphiocephalus hodgsoni (Collembola) to identify potential historical refugia and subsequent colonization routes, and to examine population growth/expansion and relative...
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Blackwell Publishing
2009
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Online Access: | https://hdl.handle.net/10289/3725 https://doi.org/10.1111/j.1365-2699.2009.02178.x |
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ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/3725 2023-12-10T09:41:18+01:00 Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica McGaughran, Angela Torricelli, Giulia Carapelli, Antonio Frati, Francesco Stevens, Mark I. Convey, Peter Hogg, Ian D. 2009 https://hdl.handle.net/10289/3725 https://doi.org/10.1111/j.1365-2699.2009.02178.x en eng Blackwell Publishing http://www3.interscience.wiley.com/journal/122557053/abstract Journal of Biogeography McGaughran, A., Torricelli, G., Carapelli, A., Frati, F., Stevens, M. I., Convey, P. & Hogg, I. D. (2009). Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica. Journal of Biogeography, 37(1), 103-119. https://hdl.handle.net/10289/3725 doi:10.1111/j.1365-2699.2009.02178.x Antarctica collembola cryptopygus antarcticus antarcticus demography glaciation gomphiocephalus hodgsoni population genetics refugia springtail Journal Article 2009 ftunivwaikato https://doi.org/10.1111/j.1365-2699.2009.02178.x 2023-11-14T18:25:26Z Aim: We examined the genetic structure among populations and regions for the springtails Cryptopygus antarcticus antarcticus and Gomphiocephalus hodgsoni (Collembola) to identify potential historical refugia and subsequent colonization routes, and to examine population growth/expansion and relative ages of population divergence. Location Antarctic Peninsula for C. a. antarcticus; Antarctic continent (southern Victoria Land) for G. hodgsoni. Methods: Samples were collected from 24 and 28 locations across the Antarctic Peninsula and southern Victoria Land regions for C. a. antarcticus and G. hodgsoni, respectively. We used population genetic, demographic and nested clade analyses based on mitochondrial DNA (cytochrome c oxidase subunit I and subunit II). Results: Both species were found to have population structures compatible with the presence of historical glacial refugia on Pleistocene (2 Ma–present) time-scales, followed by post-glacial expansion generating contemporary geographically isolated populations. However, G. hodgsoni populations were characterized by a fragmented pattern with several 'phylogroups' (likely ancestral haplotypes present in high frequency) retaining strong ancestral linkages among present-day populations. Conversely, C. a. antarcticus had an excess of rare haplotypes with a much reduced volume of ancestral lineages, possibly indicating historical founder/bottleneck events and widespread expansion. Main conclusions: We infer that these differences reflect distinct evolutionary histories in each locality despite the resident species having similar life-history characteristics. We suggest that this has predominantly been influenced by variation in the success of colonization events as a result of intrinsic historical glaciological differences between the Antarctic Peninsula and continental Antarctic environments. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Antarctica Journal antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail The University of Waikato: Research Commons Antarctic Antarctic Peninsula The Antarctic Victoria Land Journal of Biogeography 37 1 103 119 |
institution |
Open Polar |
collection |
The University of Waikato: Research Commons |
op_collection_id |
ftunivwaikato |
language |
English |
topic |
Antarctica collembola cryptopygus antarcticus antarcticus demography glaciation gomphiocephalus hodgsoni population genetics refugia springtail |
spellingShingle |
Antarctica collembola cryptopygus antarcticus antarcticus demography glaciation gomphiocephalus hodgsoni population genetics refugia springtail McGaughran, Angela Torricelli, Giulia Carapelli, Antonio Frati, Francesco Stevens, Mark I. Convey, Peter Hogg, Ian D. Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
topic_facet |
Antarctica collembola cryptopygus antarcticus antarcticus demography glaciation gomphiocephalus hodgsoni population genetics refugia springtail |
description |
Aim: We examined the genetic structure among populations and regions for the springtails Cryptopygus antarcticus antarcticus and Gomphiocephalus hodgsoni (Collembola) to identify potential historical refugia and subsequent colonization routes, and to examine population growth/expansion and relative ages of population divergence. Location Antarctic Peninsula for C. a. antarcticus; Antarctic continent (southern Victoria Land) for G. hodgsoni. Methods: Samples were collected from 24 and 28 locations across the Antarctic Peninsula and southern Victoria Land regions for C. a. antarcticus and G. hodgsoni, respectively. We used population genetic, demographic and nested clade analyses based on mitochondrial DNA (cytochrome c oxidase subunit I and subunit II). Results: Both species were found to have population structures compatible with the presence of historical glacial refugia on Pleistocene (2 Ma–present) time-scales, followed by post-glacial expansion generating contemporary geographically isolated populations. However, G. hodgsoni populations were characterized by a fragmented pattern with several 'phylogroups' (likely ancestral haplotypes present in high frequency) retaining strong ancestral linkages among present-day populations. Conversely, C. a. antarcticus had an excess of rare haplotypes with a much reduced volume of ancestral lineages, possibly indicating historical founder/bottleneck events and widespread expansion. Main conclusions: We infer that these differences reflect distinct evolutionary histories in each locality despite the resident species having similar life-history characteristics. We suggest that this has predominantly been influenced by variation in the success of colonization events as a result of intrinsic historical glaciological differences between the Antarctic Peninsula and continental Antarctic environments. |
format |
Article in Journal/Newspaper |
author |
McGaughran, Angela Torricelli, Giulia Carapelli, Antonio Frati, Francesco Stevens, Mark I. Convey, Peter Hogg, Ian D. |
author_facet |
McGaughran, Angela Torricelli, Giulia Carapelli, Antonio Frati, Francesco Stevens, Mark I. Convey, Peter Hogg, Ian D. |
author_sort |
McGaughran, Angela |
title |
Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
title_short |
Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
title_full |
Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
title_fullStr |
Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
title_full_unstemmed |
Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica |
title_sort |
contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the antarctic peninsula and continental antarctica |
publisher |
Blackwell Publishing |
publishDate |
2009 |
url |
https://hdl.handle.net/10289/3725 https://doi.org/10.1111/j.1365-2699.2009.02178.x |
geographic |
Antarctic Antarctic Peninsula The Antarctic Victoria Land |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Antarctica Journal antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Antarctica Journal antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail |
op_relation |
http://www3.interscience.wiley.com/journal/122557053/abstract Journal of Biogeography McGaughran, A., Torricelli, G., Carapelli, A., Frati, F., Stevens, M. I., Convey, P. & Hogg, I. D. (2009). Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica. Journal of Biogeography, 37(1), 103-119. https://hdl.handle.net/10289/3725 doi:10.1111/j.1365-2699.2009.02178.x |
op_doi |
https://doi.org/10.1111/j.1365-2699.2009.02178.x |
container_title |
Journal of Biogeography |
container_volume |
37 |
container_issue |
1 |
container_start_page |
103 |
op_container_end_page |
119 |
_version_ |
1784900703669452800 |