The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush)
Complete fixation of arctic charr ( Salvelinus alpinus ) mitochondrial DNA (mtDNA) was observed in a southern Québec population of lake trout ( S. namaycush ). This introgressed population otherwise appeared to be normal with regard to lake trout morphology and three species‐diagnostic microsatellit...
Published in: | Molecular Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
1998
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Online Access: | http://dx.doi.org/10.1046/j.1365-294x.1998.00302.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00302.x |
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crwiley:10.1046/j.1365-294x.1998.00302.x 2024-09-15T17:52:20+00:00 The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) WILSON, CHRIS C. BERNATCHEZ, LOUIS 1998 http://dx.doi.org/10.1046/j.1365-294x.1998.00302.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00302.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 7, issue 1, page 127-132 ISSN 0962-1083 1365-294X journal-article 1998 crwiley https://doi.org/10.1046/j.1365-294x.1998.00302.x 2024-08-13T04:18:39Z Complete fixation of arctic charr ( Salvelinus alpinus ) mitochondrial DNA (mtDNA) was observed in a southern Québec population of lake trout ( S. namaycush ). This introgressed population otherwise appeared to be normal with regard to lake trout morphology and three species‐diagnostic microsatellite loci. Arctic charr do not occur in the area, suggesting that the hybridization event was prehistoric. Of several possible hypotheses, the most plausible explanation for this aberrant population is that hybridization occurred in situ soon after deglaciation, with repeated backcrossing of hybrids with lake trout. Fixation of S. alpinus mtDNA in the population may have occurred either by chance (drift) or selection, although indirect evidence and data from similarly introgressed brook trout ( S. fontinalis ) populations in the region suggest that selection favouring the S. alpinus mitochondrial type and/or associated nuclear genes may have been involved. Article in Journal/Newspaper Arctic charr Salvelinus alpinus Wiley Online Library Molecular Ecology 7 1 127 132 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Complete fixation of arctic charr ( Salvelinus alpinus ) mitochondrial DNA (mtDNA) was observed in a southern Québec population of lake trout ( S. namaycush ). This introgressed population otherwise appeared to be normal with regard to lake trout morphology and three species‐diagnostic microsatellite loci. Arctic charr do not occur in the area, suggesting that the hybridization event was prehistoric. Of several possible hypotheses, the most plausible explanation for this aberrant population is that hybridization occurred in situ soon after deglaciation, with repeated backcrossing of hybrids with lake trout. Fixation of S. alpinus mtDNA in the population may have occurred either by chance (drift) or selection, although indirect evidence and data from similarly introgressed brook trout ( S. fontinalis ) populations in the region suggest that selection favouring the S. alpinus mitochondrial type and/or associated nuclear genes may have been involved. |
format |
Article in Journal/Newspaper |
author |
WILSON, CHRIS C. BERNATCHEZ, LOUIS |
spellingShingle |
WILSON, CHRIS C. BERNATCHEZ, LOUIS The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
author_facet |
WILSON, CHRIS C. BERNATCHEZ, LOUIS |
author_sort |
WILSON, CHRIS C. |
title |
The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
title_short |
The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
title_full |
The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
title_fullStr |
The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
title_full_unstemmed |
The ghost of hybrids past: fixation of arctic charr ( Salvelinus alpinus) mitochondrial DNA in an introgressed population of lake trout ( S. namaycush) |
title_sort |
ghost of hybrids past: fixation of arctic charr ( salvelinus alpinus) mitochondrial dna in an introgressed population of lake trout ( s. namaycush) |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1046/j.1365-294x.1998.00302.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00302.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00302.x |
genre |
Arctic charr Salvelinus alpinus |
genre_facet |
Arctic charr Salvelinus alpinus |
op_source |
Molecular Ecology volume 7, issue 1, page 127-132 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-294x.1998.00302.x |
container_title |
Molecular Ecology |
container_volume |
7 |
container_issue |
1 |
container_start_page |
127 |
op_container_end_page |
132 |
_version_ |
1810294393449480192 |