Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada
The geographical extent of Arctic char ( Salvelinus alpinus ) mitochondrial DNA introgression into brook char ( Salvelinus fontinalis ) populations found in eastern Québec was determined by analysing a total of 598 fish from 29 lakes. The nuclear genome was analysed by protein electrophoresis, where...
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Language: | English |
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1998
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Online Access: | http://dx.doi.org/10.1046/j.1365-294x.1998.00494.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00494.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00494.x |
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crwiley:10.1046/j.1365-294x.1998.00494.x 2024-06-23T07:49:43+00:00 Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada GLÉMET, H. BLIER, P. BERNATCHEZ, L. 1998 http://dx.doi.org/10.1046/j.1365-294x.1998.00494.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00494.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00494.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 7, issue 12, page 1655-1662 ISSN 0962-1083 1365-294X journal-article 1998 crwiley https://doi.org/10.1046/j.1365-294x.1998.00494.x 2024-06-13T04:23:05Z The geographical extent of Arctic char ( Salvelinus alpinus ) mitochondrial DNA introgression into brook char ( Salvelinus fontinalis ) populations found in eastern Québec was determined by analysing a total of 598 fish from 29 lakes. The nuclear genome was analysed by protein electrophoresis, whereas the ND‐5,6 portion of the mitochondrial genome was analysed by restriction fragment length polymorphism. This survey revealed that introgressed S. fontinalis populations are restricted to only one river subdrainage of the Portneuf basin, where Arctic char is completely absent. Elsewhere, nonintrogressed pure S. fontinalis populations populate the lakes. These findings suggest that the initial hybridization event between the species is ancient and probably occurred shortly after recolonization of the area. At that time, the species would have been in contact and the chances of reproductive isolation mechanisms breaking down would have been high. We discuss the possibility that a combination of biogeographical conditions coupled with positive selection for mtDNA introgression led to the present‐day distribution of introgressed S. fontinalis in northeastern North America. Article in Journal/Newspaper Arctic Salvelinus alpinus Wiley Online Library Arctic Canada Molecular Ecology 7 12 1655 1662 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The geographical extent of Arctic char ( Salvelinus alpinus ) mitochondrial DNA introgression into brook char ( Salvelinus fontinalis ) populations found in eastern Québec was determined by analysing a total of 598 fish from 29 lakes. The nuclear genome was analysed by protein electrophoresis, whereas the ND‐5,6 portion of the mitochondrial genome was analysed by restriction fragment length polymorphism. This survey revealed that introgressed S. fontinalis populations are restricted to only one river subdrainage of the Portneuf basin, where Arctic char is completely absent. Elsewhere, nonintrogressed pure S. fontinalis populations populate the lakes. These findings suggest that the initial hybridization event between the species is ancient and probably occurred shortly after recolonization of the area. At that time, the species would have been in contact and the chances of reproductive isolation mechanisms breaking down would have been high. We discuss the possibility that a combination of biogeographical conditions coupled with positive selection for mtDNA introgression led to the present‐day distribution of introgressed S. fontinalis in northeastern North America. |
format |
Article in Journal/Newspaper |
author |
GLÉMET, H. BLIER, P. BERNATCHEZ, L. |
spellingShingle |
GLÉMET, H. BLIER, P. BERNATCHEZ, L. Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
author_facet |
GLÉMET, H. BLIER, P. BERNATCHEZ, L. |
author_sort |
GLÉMET, H. |
title |
Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
title_short |
Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
title_full |
Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
title_fullStr |
Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
title_full_unstemmed |
Geographical extent of Arctic char ( Salvelinus alpinus) mtDNA introgression in brook char populations ( S. fontinalis) from eastern Québec, Canada |
title_sort |
geographical extent of arctic char ( salvelinus alpinus) mtdna introgression in brook char populations ( s. fontinalis) from eastern québec, canada |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1046/j.1365-294x.1998.00494.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00494.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00494.x |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
Molecular Ecology volume 7, issue 12, page 1655-1662 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1046/j.1365-294x.1998.00494.x |
container_title |
Molecular Ecology |
container_volume |
7 |
container_issue |
12 |
container_start_page |
1655 |
op_container_end_page |
1662 |
_version_ |
1802640368693411840 |