Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout
Interspecific hybridization may occur in situations of recent contact between a colonizer and a resident species, being more intense in the colonization front. Atlantic salmon Salmo salar and brown trout S. trutta have been sympatric species since their origin and they share spatial and temporal spa...
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fthighwire:oai:open-archive.highwire.org:jhered:102/2/237 2023-05-15T15:30:59+02:00 Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout Hórreo, Jose L. Ayllón, Fernando Perez, Juliana Beall, Edward Garcia-Vazquez, Eva 2011-03-01 00:00:00.0 text/html http://jhered.oxfordjournals.org/cgi/content/short/102/2/237 https://doi.org/10.1093/jhered/esq130 en eng Oxford University Press http://jhered.oxfordjournals.org/cgi/content/short/102/2/237 http://dx.doi.org/10.1093/jhered/esq130 Copyright (C) 2011, American Genetic Association Brief Communications TEXT 2011 fthighwire https://doi.org/10.1093/jhered/esq130 2011-03-13T13:38:41Z Interspecific hybridization may occur in situations of recent contact between a colonizer and a resident species, being more intense in the colonization front. Atlantic salmon Salmo salar and brown trout S. trutta have been sympatric species since their origin and they share spatial and temporal spawning niches, exhibiting low levels of bidirectional interspecific hybridization and introgression throughout their distribution range. Different causes have been identified for increased hybridization, from escapes or deliberate releases of domesticated fish to sneaking male behavior. We have examined hybridization rates and direction in different situations of advance of one of these species into a territory formerly inhabited by the other (247 samples were analyzed in northern Spain and 487 in Kerguelen Islands). In all cases, hybrids found in the colonization front were offspring of colonizer females and resident males. We hypothesize that these findings are the result of adaptive relaxed mate choice of colonizing females, regardless of the relative abundance of each species. Text Atlantic salmon Kerguelen Islands Salmo salar HighWire Press (Stanford University) Kerguelen Kerguelen Islands Journal of Heredity 102 2 237 242 |
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Open Polar |
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HighWire Press (Stanford University) |
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fthighwire |
language |
English |
topic |
Brief Communications |
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Brief Communications Hórreo, Jose L. Ayllón, Fernando Perez, Juliana Beall, Edward Garcia-Vazquez, Eva Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
topic_facet |
Brief Communications |
description |
Interspecific hybridization may occur in situations of recent contact between a colonizer and a resident species, being more intense in the colonization front. Atlantic salmon Salmo salar and brown trout S. trutta have been sympatric species since their origin and they share spatial and temporal spawning niches, exhibiting low levels of bidirectional interspecific hybridization and introgression throughout their distribution range. Different causes have been identified for increased hybridization, from escapes or deliberate releases of domesticated fish to sneaking male behavior. We have examined hybridization rates and direction in different situations of advance of one of these species into a territory formerly inhabited by the other (247 samples were analyzed in northern Spain and 487 in Kerguelen Islands). In all cases, hybrids found in the colonization front were offspring of colonizer females and resident males. We hypothesize that these findings are the result of adaptive relaxed mate choice of colonizing females, regardless of the relative abundance of each species. |
format |
Text |
author |
Hórreo, Jose L. Ayllón, Fernando Perez, Juliana Beall, Edward Garcia-Vazquez, Eva |
author_facet |
Hórreo, Jose L. Ayllón, Fernando Perez, Juliana Beall, Edward Garcia-Vazquez, Eva |
author_sort |
Hórreo, Jose L. |
title |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
title_short |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
title_full |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
title_fullStr |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
title_full_unstemmed |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout |
title_sort |
interspecific hybridization, a matter of pioneering? insights from atlantic salmon and brown trout |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
http://jhered.oxfordjournals.org/cgi/content/short/102/2/237 https://doi.org/10.1093/jhered/esq130 |
geographic |
Kerguelen Kerguelen Islands |
geographic_facet |
Kerguelen Kerguelen Islands |
genre |
Atlantic salmon Kerguelen Islands Salmo salar |
genre_facet |
Atlantic salmon Kerguelen Islands Salmo salar |
op_relation |
http://jhered.oxfordjournals.org/cgi/content/short/102/2/237 http://dx.doi.org/10.1093/jhered/esq130 |
op_rights |
Copyright (C) 2011, American Genetic Association |
op_doi |
https://doi.org/10.1093/jhered/esq130 |
container_title |
Journal of Heredity |
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102 |
container_issue |
2 |
container_start_page |
237 |
op_container_end_page |
242 |
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1766361476261478400 |