The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature

Show simple item record O'Toole, Ciar Reed, Thomas E. Bailie, Deborah Bradley, Caroline Cotter, Deirdre Coughlan, Jamie P. Cross, Thomas F. Dillane, Eileen McEvoy, Sarah Ó Maoiléidigh, Niall Prodöhl, Paulo Rogan, Ger McGinnity, Philip 2018-03-28T08:54:05Z 2018-03-28T08:54:05Z 2015-07-24
dc.identifier.citation O'Toole, C. L., Reed, T. E., Bailie, D., Bradley, C., Cotter, D., Coughlan, J., Cross, T., Dillane, E., McEvoy, S., Ó Maoiléidigh, N., Prodöhl, P., Rogan, G. and McGinnity, P. (2015) 'The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature', Evolutionary Applications, 8(9), pp. 881-900. doi:10.1111/eva.12299 en
dc.identifier.volume 8 en
dc.identifier.issued 9 en
dc.identifier.startpage 881 en
dc.identifier.endpage 900 en
dc.identifier.issn 1752-4571
dc.identifier.doi 10.1111/eva.12299
dc.description.abstract Understanding the extent, scale and genetic basis of local adaptation (LA) 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 F-1 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. en
dc.description.sponsorship Marine Institute (Beaufort Marine Research Award in Fish Population Genetics) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher John Wiley & Sons Ltd. en
dc.rights © 2015, the Authors. Evolutionary Applications published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. en
dc.subject Adaptive peak en
dc.subject Anadromous en
dc.subject Common garden en
dc.subject Gene flow en
dc.subject Heterosis en
dc.subject Outbreeding depression en
dc.subject Spatial scale en
dc.title The signature of fine scale local adaptation in Atlantic salmon revealed from common garden experiments in nature en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Philip McGinnity, Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland. +353-21-490-3000 Email: en
dc.internal.availability Full text available en 2018-03-14T10:16:14Z
dc.description.version Published Version en
dc.internal.rssid 421659186
dc.internal.wokid WOS:000363403100004
dc.contributor.funder Marine Institute en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Evolutionary Applications en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress en

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