An assessment of hybridization potential between Atlantic and Pacific salmon
Salmonids possess straying abilities that allows them to exploit open territory and establish new populations. Atlantic salmon (Salmo salar) are expanding their distribution primarily as first-generation escapes from aquaculture, whereas Pacific salmon (Oncorhynchus spp.) are expanding their range i...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2021-0083 2024-09-09T19:30:15+00:00 An assessment of hybridization potential between Atlantic and Pacific salmon Devlin, Robert H. Biagi, Carlo A. Sakhrani, Dionne Fujimoto, Takafumi Leggatt, Rosalind A. Smith, Jack L. Yesaki, Timothy Y. 2022 http://dx.doi.org/10.1139/cjfas-2021-0083 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0083 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0083 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 4, page 670-676 ISSN 0706-652X 1205-7533 journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfas-2021-0083 2024-08-15T04:09:32Z Salmonids possess straying abilities that allows them to exploit open territory and establish new populations. Atlantic salmon (Salmo salar) are expanding their distribution primarily as first-generation escapes from aquaculture, whereas Pacific salmon (Oncorhynchus spp.) are expanding their range in polar and temperate regions due to both anthropogenic and natural influences. Here we utilize artificial intergeneric reciprocal crosses to assess the ability of seven species of Pacific salmon to hybridize with Atlantic salmon. Most cross types were found to produce low numbers of hatched embryos, but none survived to sexual maturation. Survivors consisted of diploids and triploids containing both Atlantic and Pacific salmon parental genomes. Thus, introgression of DNA between Pacific and Atlantic salmon may occur to form F 1 hybrids, but transmission to subsequent generations is expected to be rare and occur only over evolutionary time scales. Further, the low viability observed for the most part at early stages of development and in both reciprocal crosses indicates that intergeneric crosses in nature between Atlantic and Pacific salmon are expected to have severe fitness consequences for both dams and sires. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Pacific Canadian Journal of Fisheries and Aquatic Sciences 1 7 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Salmonids possess straying abilities that allows them to exploit open territory and establish new populations. Atlantic salmon (Salmo salar) are expanding their distribution primarily as first-generation escapes from aquaculture, whereas Pacific salmon (Oncorhynchus spp.) are expanding their range in polar and temperate regions due to both anthropogenic and natural influences. Here we utilize artificial intergeneric reciprocal crosses to assess the ability of seven species of Pacific salmon to hybridize with Atlantic salmon. Most cross types were found to produce low numbers of hatched embryos, but none survived to sexual maturation. Survivors consisted of diploids and triploids containing both Atlantic and Pacific salmon parental genomes. Thus, introgression of DNA between Pacific and Atlantic salmon may occur to form F 1 hybrids, but transmission to subsequent generations is expected to be rare and occur only over evolutionary time scales. Further, the low viability observed for the most part at early stages of development and in both reciprocal crosses indicates that intergeneric crosses in nature between Atlantic and Pacific salmon are expected to have severe fitness consequences for both dams and sires. |
format |
Article in Journal/Newspaper |
author |
Devlin, Robert H. Biagi, Carlo A. Sakhrani, Dionne Fujimoto, Takafumi Leggatt, Rosalind A. Smith, Jack L. Yesaki, Timothy Y. |
spellingShingle |
Devlin, Robert H. Biagi, Carlo A. Sakhrani, Dionne Fujimoto, Takafumi Leggatt, Rosalind A. Smith, Jack L. Yesaki, Timothy Y. An assessment of hybridization potential between Atlantic and Pacific salmon |
author_facet |
Devlin, Robert H. Biagi, Carlo A. Sakhrani, Dionne Fujimoto, Takafumi Leggatt, Rosalind A. Smith, Jack L. Yesaki, Timothy Y. |
author_sort |
Devlin, Robert H. |
title |
An assessment of hybridization potential between Atlantic and Pacific salmon |
title_short |
An assessment of hybridization potential between Atlantic and Pacific salmon |
title_full |
An assessment of hybridization potential between Atlantic and Pacific salmon |
title_fullStr |
An assessment of hybridization potential between Atlantic and Pacific salmon |
title_full_unstemmed |
An assessment of hybridization potential between Atlantic and Pacific salmon |
title_sort |
assessment of hybridization potential between atlantic and pacific salmon |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfas-2021-0083 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0083 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0083 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 4, page 670-676 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2021-0083 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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1 |
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7 |
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1809899246395064320 |