The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature
Understanding the extent, scale and genetic basis of local adaptation is important for conservation and management. Its relevance in salmonids at microgeographic scales, where dispersal (and hence potential gene flow) can be substantial, has however been questioned. Here we compare the fitness of co...
Published in: | Evolutionary Applications |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/1f5bf4a6-b681-4540-8e67-00cad9a7ee68 2024-01-14T10:05:28+01:00 The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature O'Toole, Ciar L. Reed, Thomas E. Bailie, Deborah Bradley, Caroline Cotter, Deirdre Coughlan, Jamie Cross, Tom Dillane, Eileen McEvoy, Sarah O' Maoileidigh, Niall Prodöhl, Paulo Rogan, Ger McGinnity, Philip 2015-10 application/pdf https://pure.qub.ac.uk/en/publications/1f5bf4a6-b681-4540-8e67-00cad9a7ee68 https://doi.org/10.1111/eva.12299 https://pureadmin.qub.ac.uk/ws/files/18161403/signature_of_fine_scale.pdf eng eng info:eu-repo/semantics/openAccess O'Toole , C L , Reed , T E , Bailie , D , Bradley , C , Cotter , D , Coughlan , J , Cross , T , Dillane , E , McEvoy , S , O' Maoileidigh , N , Prodöhl , P , Rogan , G & McGinnity , P 2015 , ' The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature ' , Evolutionary Applications , vol. 8 , no. 9 , pp. 881-900 . https://doi.org/10.1111/eva.12299 /dk/atira/pure/sustainabledevelopmentgoals/reduced_inequalities SDG 10 - Reduced Inequalities article 2015 ftqueensubelpubl https://doi.org/10.1111/eva.12299 2023-12-21T23:27:12Z Understanding the extent, scale and genetic basis of local adaptation is important for conservation and management. Its relevance in salmonids at microgeographic scales, where dispersal (and hence potential gene flow) can be substantial, has however been questioned. Here we compare the fitness of communally-reared offspring of local and foreign Atlantic salmon Salmo salar from adjacent Irish rivers and reciprocal F1 hybrid crosses between them, in the wild ‘home’ environment of the local population. Experimental groups did not differ in wild smolt output but a catastrophic flood event may have limited our ability to detect freshwater performance differences, which were evident in a previous study. Foreign parr exhibited higher, and hybrids intermediate, emigration rates from the natal stream relative to local parr, consistent with genetically-based behavioural differences. Adult return rates were lower for the foreign compared to the local group. Overall lifetime success of foreigners and hybrids relative to locals was estimated at 31% and 40% (mean of both hybrid groups), respectively. The results imply a genetic basis to fitness differences among populations separated by only 50km, driven largely by variation in smolt to adult return rates. Hence even if supplementary stocking programs obtain broodstock from neighbouring rivers, the risk of extrinsic outbreeding depression may be high. Article in Journal/Newspaper Atlantic salmon Salmo salar Queen's University Belfast Research Portal Evolutionary Applications 8 9 881 900 |
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Open Polar |
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Queen's University Belfast Research Portal |
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ftqueensubelpubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/reduced_inequalities SDG 10 - Reduced Inequalities |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/reduced_inequalities SDG 10 - Reduced Inequalities O'Toole, Ciar L. Reed, Thomas E. Bailie, Deborah Bradley, Caroline Cotter, Deirdre Coughlan, Jamie Cross, Tom Dillane, Eileen McEvoy, Sarah O' Maoileidigh, Niall Prodöhl, Paulo Rogan, Ger McGinnity, Philip The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/reduced_inequalities SDG 10 - Reduced Inequalities |
description |
Understanding the extent, scale and genetic basis of local adaptation is important for conservation and management. Its relevance in salmonids at microgeographic scales, where dispersal (and hence potential gene flow) can be substantial, has however been questioned. Here we compare the fitness of communally-reared offspring of local and foreign Atlantic salmon Salmo salar from adjacent Irish rivers and reciprocal F1 hybrid crosses between them, in the wild ‘home’ environment of the local population. Experimental groups did not differ in wild smolt output but a catastrophic flood event may have limited our ability to detect freshwater performance differences, which were evident in a previous study. Foreign parr exhibited higher, and hybrids intermediate, emigration rates from the natal stream relative to local parr, consistent with genetically-based behavioural differences. Adult return rates were lower for the foreign compared to the local group. Overall lifetime success of foreigners and hybrids relative to locals was estimated at 31% and 40% (mean of both hybrid groups), respectively. The results imply a genetic basis to fitness differences among populations separated by only 50km, driven largely by variation in smolt to adult return rates. Hence even if supplementary stocking programs obtain broodstock from neighbouring rivers, the risk of extrinsic outbreeding depression may be high. |
format |
Article in Journal/Newspaper |
author |
O'Toole, Ciar L. Reed, Thomas E. Bailie, Deborah Bradley, Caroline Cotter, Deirdre Coughlan, Jamie Cross, Tom Dillane, Eileen McEvoy, Sarah O' Maoileidigh, Niall Prodöhl, Paulo Rogan, Ger McGinnity, Philip |
author_facet |
O'Toole, Ciar L. Reed, Thomas E. Bailie, Deborah Bradley, Caroline Cotter, Deirdre Coughlan, Jamie Cross, Tom Dillane, Eileen McEvoy, Sarah O' Maoileidigh, Niall Prodöhl, Paulo Rogan, Ger McGinnity, Philip |
author_sort |
O'Toole, Ciar L. |
title |
The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
title_short |
The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
title_full |
The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
title_fullStr |
The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
title_full_unstemmed |
The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature |
title_sort |
signature of fine scale local adaptation in atlantic salmon revealed from common garden experiments in nature |
publishDate |
2015 |
url |
https://pure.qub.ac.uk/en/publications/1f5bf4a6-b681-4540-8e67-00cad9a7ee68 https://doi.org/10.1111/eva.12299 https://pureadmin.qub.ac.uk/ws/files/18161403/signature_of_fine_scale.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
O'Toole , C L , Reed , T E , Bailie , D , Bradley , C , Cotter , D , Coughlan , J , Cross , T , Dillane , E , McEvoy , S , O' Maoileidigh , N , Prodöhl , P , Rogan , G & McGinnity , P 2015 , ' The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature ' , Evolutionary Applications , vol. 8 , no. 9 , pp. 881-900 . https://doi.org/10.1111/eva.12299 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/eva.12299 |
container_title |
Evolutionary Applications |
container_volume |
8 |
container_issue |
9 |
container_start_page |
881 |
op_container_end_page |
900 |
_version_ |
1788059816439054336 |