Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale
The mitochondrial COI gene of the Antarctic springtail, Gressittacantha terranova, was sequenced across a polar coastal landscape at Terra Nova Bay, northern Victoria Land. Samples from two altitudinal transects in the foothills directly south of Campbell Glacier were compared with samples from Spri...
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Online Access: | http://hdl.handle.net/2440/62926 https://doi.org/10.1017/S0954102010000490 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/62926 2023-12-17T10:21:30+01:00 Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale Hawes, T. Torricelli, G. Stevens, M. 2010 http://hdl.handle.net/2440/62926 https://doi.org/10.1017/S0954102010000490 en eng Cambridge Univ Press Antarctic Science, 2010; 22(8 Sp Iss):766-773 0954-1020 1365-2079 http://hdl.handle.net/2440/62926 doi:10.1017/S0954102010000490 Stevens, M. [0000-0003-1505-1639] Copyright © Antarctic Science Ltd 2010 Collembola dispersal isolation latitudinal gradient project mitochondrial DNA Victoria Land Journal article 2010 ftunivadelaidedl https://doi.org/10.1017/S0954102010000490 2023-11-20T23:34:15Z The mitochondrial COI gene of the Antarctic springtail, Gressittacantha terranova, was sequenced across a polar coastal landscape at Terra Nova Bay, northern Victoria Land. Samples from two altitudinal transects in the foothills directly south of Campbell Glacier were compared with samples from Springtail Valley (northern foothills) as an external reference population. We found that mtDNA haplotypes clustered into two lineages (clades) with a mean sequence divergence of 10% (uncorrected distance). However, there was no phylogeographic structure found at this spatial (landscape) scale with haplotypes from both divergent clades found sympatric across most populations. At the landscape scale, the considerable genetic divergence revealed within G. terranova is around five times greater than any other continental Antarctic springtail examined to date. These data indicate a Pliocene divergence event in G. terranova around 4–5 million years ago. The unusual distributional profile of haplotypes - occurrence of multiple haplotypes at single sites and genetic contiguity between sites that are not physically contiguous - suggests a subsequent ‘reshuffling’ of haplotypes in the Holocene that has an ecological basis. T.C. Hawes, G. Torricelli and M.I. Stevens Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctic Springtail Terranova Victoria Land Springtail The University of Adelaide: Digital Library Antarctic Campbell Glacier ENVELOPE(45.683,45.683,-67.800,-67.800) Northern Foothills ENVELOPE(163.917,163.917,-74.733,-74.733) Terra Nova Bay The Antarctic Victoria Land Antarctic Science 22 6 766 773 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
Collembola dispersal isolation latitudinal gradient project mitochondrial DNA Victoria Land |
spellingShingle |
Collembola dispersal isolation latitudinal gradient project mitochondrial DNA Victoria Land Hawes, T. Torricelli, G. Stevens, M. Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
topic_facet |
Collembola dispersal isolation latitudinal gradient project mitochondrial DNA Victoria Land |
description |
The mitochondrial COI gene of the Antarctic springtail, Gressittacantha terranova, was sequenced across a polar coastal landscape at Terra Nova Bay, northern Victoria Land. Samples from two altitudinal transects in the foothills directly south of Campbell Glacier were compared with samples from Springtail Valley (northern foothills) as an external reference population. We found that mtDNA haplotypes clustered into two lineages (clades) with a mean sequence divergence of 10% (uncorrected distance). However, there was no phylogeographic structure found at this spatial (landscape) scale with haplotypes from both divergent clades found sympatric across most populations. At the landscape scale, the considerable genetic divergence revealed within G. terranova is around five times greater than any other continental Antarctic springtail examined to date. These data indicate a Pliocene divergence event in G. terranova around 4–5 million years ago. The unusual distributional profile of haplotypes - occurrence of multiple haplotypes at single sites and genetic contiguity between sites that are not physically contiguous - suggests a subsequent ‘reshuffling’ of haplotypes in the Holocene that has an ecological basis. T.C. Hawes, G. Torricelli and M.I. Stevens |
format |
Article in Journal/Newspaper |
author |
Hawes, T. Torricelli, G. Stevens, M. |
author_facet |
Hawes, T. Torricelli, G. Stevens, M. |
author_sort |
Hawes, T. |
title |
Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
title_short |
Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
title_full |
Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
title_fullStr |
Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
title_full_unstemmed |
Haplotype diversity in the Antarctic springtail Gressittacantha terranova at fine spatial scales - a Holocene twist to a Pliocene tale |
title_sort |
haplotype diversity in the antarctic springtail gressittacantha terranova at fine spatial scales - a holocene twist to a pliocene tale |
publisher |
Cambridge Univ Press |
publishDate |
2010 |
url |
http://hdl.handle.net/2440/62926 https://doi.org/10.1017/S0954102010000490 |
long_lat |
ENVELOPE(45.683,45.683,-67.800,-67.800) ENVELOPE(163.917,163.917,-74.733,-74.733) |
geographic |
Antarctic Campbell Glacier Northern Foothills Terra Nova Bay The Antarctic Victoria Land |
geographic_facet |
Antarctic Campbell Glacier Northern Foothills Terra Nova Bay The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctic Science Antarctic Springtail Terranova Victoria Land Springtail |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctic Springtail Terranova Victoria Land Springtail |
op_relation |
Antarctic Science, 2010; 22(8 Sp Iss):766-773 0954-1020 1365-2079 http://hdl.handle.net/2440/62926 doi:10.1017/S0954102010000490 Stevens, M. [0000-0003-1505-1639] |
op_rights |
Copyright © Antarctic Science Ltd 2010 |
op_doi |
https://doi.org/10.1017/S0954102010000490 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
6 |
container_start_page |
766 |
op_container_end_page |
773 |
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1785535247122694144 |