Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica
<jats:title>Abstract</jats:title><jats:p><jats:bold>Aim </jats:bold>We examined the genetic structure among populations and regions for the springtails<jats:italic>Cryptopygus antarcticus antarcticus</jats:italic>and<jats:italic>Gomphiocephalus hodgson...
Published in: | Journal of Biogeography |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Blackwell Science Ltd
2010
|
Subjects: | |
Online Access: | http://hdl.handle.net/2440/66952 https://doi.org/10.1111/j.1365-2699.2009.02178.x |
id |
ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/66952 |
---|---|
record_format |
openpolar |
spelling |
ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/66952 2024-04-21T07:52:04+00:00 Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica McGaughran, A. Torricelli, G. Carapelli, A. Frati, F. Stevens, M. Convey, P. Hogg, I. 2010 http://hdl.handle.net/2440/66952 https://doi.org/10.1111/j.1365-2699.2009.02178.x en eng Blackwell Science Ltd Journal of Biogeography, 2010; 37(1):103-119 0305-0270 1365-2699 http://hdl.handle.net/2440/66952 doi:10.1111/j.1365-2699.2009.02178.x Stevens, M. [0000-0003-1505-1639] © 2009 Blackwell Publishing Ltd. http://dx.doi.org/10.1111/j.1365-2699.2009.02178.x Antarctica Collembola Cryptopygus antarcticus antarcticus demography glaciation Gomphiocephalus hodgsoni population genetics refugia springtail Journal article 2010 ftunivadelaidedl https://doi.org/10.1111/j.1365-2699.2009.02178.x 2024-03-27T17:58:59Z <jats:title>Abstract</jats:title><jats:p><jats:bold>Aim </jats:bold>We examined the genetic structure among populations and regions for the springtails<jats:italic>Cryptopygus antarcticus antarcticus</jats:italic>and<jats:italic>Gomphiocephalus hodgsoni</jats:italic>(Collembola) to identify potential historical refugia and subsequent colonization routes, and to examine population growth/expansion and relative ages of population divergence.</jats:p><jats:p><jats:bold>Location </jats:bold>Antarctic Peninsula for<jats:italic>C. a. antarcticus</jats:italic>; Antarctic continent (southern Victoria Land) for<jats:italic>G. hodgsoni</jats:italic>.</jats:p><jats:p><jats:bold>Methods </jats:bold>Samples were collected from 24 and 28 locations across the Antarctic Peninsula and southern Victoria Land regions for<jats:italic>C. a. antarcticus</jats:italic>and<jats:italic>G. hodgsoni</jats:italic>, respectively. We used population genetic, demographic and nested clade analyses based on mitochondrial DNA (cytochrome<jats:italic>c</jats:italic>oxidase subunit I and subunit II).</jats:p><jats:p><jats:bold>Results </jats:bold>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,<jats:italic>G. hodgsoni</jats:italic>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,<jats:italic>C. a. antarcticus</jats:italic>had an excess of rare haplotypes with a much reduced volume of ancestral lineages, possibly indicating historical founder/bottleneck events and ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail The University of Adelaide: Digital Library Journal of Biogeography 37 1 103 119 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
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, A. Torricelli, G. Carapelli, A. Frati, F. Stevens, M. Convey, P. Hogg, I. 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 |
<jats:title>Abstract</jats:title><jats:p><jats:bold>Aim </jats:bold>We examined the genetic structure among populations and regions for the springtails<jats:italic>Cryptopygus antarcticus antarcticus</jats:italic>and<jats:italic>Gomphiocephalus hodgsoni</jats:italic>(Collembola) to identify potential historical refugia and subsequent colonization routes, and to examine population growth/expansion and relative ages of population divergence.</jats:p><jats:p><jats:bold>Location </jats:bold>Antarctic Peninsula for<jats:italic>C. a. antarcticus</jats:italic>; Antarctic continent (southern Victoria Land) for<jats:italic>G. hodgsoni</jats:italic>.</jats:p><jats:p><jats:bold>Methods </jats:bold>Samples were collected from 24 and 28 locations across the Antarctic Peninsula and southern Victoria Land regions for<jats:italic>C. a. antarcticus</jats:italic>and<jats:italic>G. hodgsoni</jats:italic>, respectively. We used population genetic, demographic and nested clade analyses based on mitochondrial DNA (cytochrome<jats:italic>c</jats:italic>oxidase subunit I and subunit II).</jats:p><jats:p><jats:bold>Results </jats:bold>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,<jats:italic>G. hodgsoni</jats:italic>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,<jats:italic>C. a. antarcticus</jats:italic>had an excess of rare haplotypes with a much reduced volume of ancestral lineages, possibly indicating historical founder/bottleneck events and ... |
format |
Article in Journal/Newspaper |
author |
McGaughran, A. Torricelli, G. Carapelli, A. Frati, F. Stevens, M. Convey, P. Hogg, I. |
author_facet |
McGaughran, A. Torricelli, G. Carapelli, A. Frati, F. Stevens, M. Convey, P. Hogg, I. |
author_sort |
McGaughran, A. |
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 Science Ltd |
publishDate |
2010 |
url |
http://hdl.handle.net/2440/66952 https://doi.org/10.1111/j.1365-2699.2009.02178.x |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Cryptopygus antarcticus Gomphiocephalus hodgsoni Victoria Land Springtail |
op_source |
http://dx.doi.org/10.1111/j.1365-2699.2009.02178.x |
op_relation |
Journal of Biogeography, 2010; 37(1):103-119 0305-0270 1365-2699 http://hdl.handle.net/2440/66952 doi:10.1111/j.1365-2699.2009.02178.x Stevens, M. [0000-0003-1505-1639] |
op_rights |
© 2009 Blackwell Publishing Ltd. |
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_ |
1796935327317753856 |