Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America
This study used molecular markers to examine patterns of genetic variation and post-glacial dispersal in three species of freshwater zooplankton from glaciated North America. A survey of both mitochondrial and allozyme variation in the cladoceran ' Sida crystallina' revealed the presence o...
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University of Guelph
2001
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ftunivguelph:oai:atrium.lib.uoguelph.ca:10214/20462 2023-11-05T03:38:23+01:00 Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America Cox, Andrea Joan Hebert, Paul D.N. 2001 application/pdf https://hdl.handle.net/10214/20462 en eng University of Guelph https://hdl.handle.net/10214/20462 All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. molecular markers genetic variation post-glacial dispersal freshwater zooplankton North America Canadian Arctic mitochondrial variation allozyme variation cladoceran Sida crystallina allopatric assemblages refugial lineages freshwater fishes mtDNA variation arctic anostracans Branchinecta paludosa Arlemiopsis stefanssoni Thesis 2001 ftunivguelph 2023-10-08T06:09:31Z This study used molecular markers to examine patterns of genetic variation and post-glacial dispersal in three species of freshwater zooplankton from glaciated North America. A survey of both mitochondrial and allozyme variation in the cladoceran ' Sida crystallina' revealed the presence of four allopatric assemblages derived from separate Wisconsinan refugia. Divergence between phylogroups was deeper than that previously observed for refugial lineages of freshwater fishes subject to the same glaciation events. Examination of mtDNA variation at two genes in the arctic anostracans ' Branchinecta paludosa' and 'Arlemiopsis stefanssoni' revealed a divergent phylogeographic history. 'A. stefanssoni' populations derive from a single glacial refuge, while 'B. paludosa ' occupied several refugia. The distribution of these phylogroups supports the presence of high arctic refugial lineages of both species in the Canadian arctic. Results from this study highlight the importance of life history characteristics including body size, diapause, and generation time in determining the ability of different taxa to persist in glacial refugia during the Pleistocene. Thesis Arctic Zooplankton University of Guelph: DSpace digital archive |
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Open Polar |
collection |
University of Guelph: DSpace digital archive |
op_collection_id |
ftunivguelph |
language |
English |
topic |
molecular markers genetic variation post-glacial dispersal freshwater zooplankton North America Canadian Arctic mitochondrial variation allozyme variation cladoceran Sida crystallina allopatric assemblages refugial lineages freshwater fishes mtDNA variation arctic anostracans Branchinecta paludosa Arlemiopsis stefanssoni |
spellingShingle |
molecular markers genetic variation post-glacial dispersal freshwater zooplankton North America Canadian Arctic mitochondrial variation allozyme variation cladoceran Sida crystallina allopatric assemblages refugial lineages freshwater fishes mtDNA variation arctic anostracans Branchinecta paludosa Arlemiopsis stefanssoni Cox, Andrea Joan Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
topic_facet |
molecular markers genetic variation post-glacial dispersal freshwater zooplankton North America Canadian Arctic mitochondrial variation allozyme variation cladoceran Sida crystallina allopatric assemblages refugial lineages freshwater fishes mtDNA variation arctic anostracans Branchinecta paludosa Arlemiopsis stefanssoni |
description |
This study used molecular markers to examine patterns of genetic variation and post-glacial dispersal in three species of freshwater zooplankton from glaciated North America. A survey of both mitochondrial and allozyme variation in the cladoceran ' Sida crystallina' revealed the presence of four allopatric assemblages derived from separate Wisconsinan refugia. Divergence between phylogroups was deeper than that previously observed for refugial lineages of freshwater fishes subject to the same glaciation events. Examination of mtDNA variation at two genes in the arctic anostracans ' Branchinecta paludosa' and 'Arlemiopsis stefanssoni' revealed a divergent phylogeographic history. 'A. stefanssoni' populations derive from a single glacial refuge, while 'B. paludosa ' occupied several refugia. The distribution of these phylogroups supports the presence of high arctic refugial lineages of both species in the Canadian arctic. Results from this study highlight the importance of life history characteristics including body size, diapause, and generation time in determining the ability of different taxa to persist in glacial refugia during the Pleistocene. |
author2 |
Hebert, Paul D.N. |
format |
Thesis |
author |
Cox, Andrea Joan |
author_facet |
Cox, Andrea Joan |
author_sort |
Cox, Andrea Joan |
title |
Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
title_short |
Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
title_full |
Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
title_fullStr |
Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
title_full_unstemmed |
Freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in North America |
title_sort |
freshwater phylogeography: the impact of life history traits on the post-glacial dispersal of zooplankton in north america |
publisher |
University of Guelph |
publishDate |
2001 |
url |
https://hdl.handle.net/10214/20462 |
genre |
Arctic Zooplankton |
genre_facet |
Arctic Zooplankton |
op_relation |
https://hdl.handle.net/10214/20462 |
op_rights |
All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. |
_version_ |
1781694092385714176 |