Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua)
Methods for determining the geographical origin of individual fish are in high demand for fighting illegal, unreported, and unregulated (IUU) fishing and for independent control of catch certificates and “eco‐labels”. Hitherto, genetic origin assignment of marine fish has been hampered by the genera...
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ftdtupubl:oai:pure.atira.dk:publications/58a14dd5-9413-43a0-88dc-c8ca34fd2207 2024-09-15T17:55:31+00:00 Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) Eg Nielsen, Einar Hansen, Jakob Hemmer Taylor, Martin Carvalho, Gary 2012 https://orbit.dtu.dk/en/publications/58a14dd5-9413-43a0-88dc-c8ca34fd2207 eng eng https://orbit.dtu.dk/en/publications/58a14dd5-9413-43a0-88dc-c8ca34fd2207 info:eu-repo/semantics/restrictedAccess Eg Nielsen , E , Hansen , J H , Taylor , M & Carvalho , G 2012 , ' Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) ' . /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water conferenceObject 2012 ftdtupubl 2024-07-01T23:52:53Z Methods for determining the geographical origin of individual fish are in high demand for fighting illegal, unreported, and unregulated (IUU) fishing and for independent control of catch certificates and “eco‐labels”. Hitherto, genetic origin assignment of marine fish has been hampered by the general low levels of genetic differentiation among populations. By using a new concept of studying gene‐associated single nucleotide polymorphisms (SNPs), we show that individual cod can be assigned back to population of origin with unprecedented high levels of precision. We assessed pan‐European variation in more than 1200 gene‐associated SNPs in cod and found that levels of differentiation for a subset of 132 SNPs was best explained by a model including directional selection. These high‐differentiation SNPs were used for designing “minimum panels with maximum power” for a number of case studies relevant for controlling illegal fishing, ecolabels, and fisheries management. Our results demonstrate how application of gene‐associated markers will probably revolutionize origin assignment in cod by providing faster, cheaper, and more reliable tools for origin assignment Conference Object atlantic cod Gadus morhua Technical University of Denmark: DTU Orbit |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Eg Nielsen, Einar Hansen, Jakob Hemmer Taylor, Martin Carvalho, Gary Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Methods for determining the geographical origin of individual fish are in high demand for fighting illegal, unreported, and unregulated (IUU) fishing and for independent control of catch certificates and “eco‐labels”. Hitherto, genetic origin assignment of marine fish has been hampered by the general low levels of genetic differentiation among populations. By using a new concept of studying gene‐associated single nucleotide polymorphisms (SNPs), we show that individual cod can be assigned back to population of origin with unprecedented high levels of precision. We assessed pan‐European variation in more than 1200 gene‐associated SNPs in cod and found that levels of differentiation for a subset of 132 SNPs was best explained by a model including directional selection. These high‐differentiation SNPs were used for designing “minimum panels with maximum power” for a number of case studies relevant for controlling illegal fishing, ecolabels, and fisheries management. Our results demonstrate how application of gene‐associated markers will probably revolutionize origin assignment in cod by providing faster, cheaper, and more reliable tools for origin assignment |
format |
Conference Object |
author |
Eg Nielsen, Einar Hansen, Jakob Hemmer Taylor, Martin Carvalho, Gary |
author_facet |
Eg Nielsen, Einar Hansen, Jakob Hemmer Taylor, Martin Carvalho, Gary |
author_sort |
Eg Nielsen, Einar |
title |
Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
title_short |
Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
title_full |
Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
title_fullStr |
Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
title_full_unstemmed |
Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) |
title_sort |
where does the cod come from? panels of gene‐associated markers provide vastly improved origin assignment in atlantic cod (gadus morhua) |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/58a14dd5-9413-43a0-88dc-c8ca34fd2207 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Eg Nielsen , E , Hansen , J H , Taylor , M & Carvalho , G 2012 , ' Where does the cod come from? Panels of gene‐associated markers provide vastly improved origin assignment in Atlantic cod (Gadus morhua) ' . |
op_relation |
https://orbit.dtu.dk/en/publications/58a14dd5-9413-43a0-88dc-c8ca34fd2207 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1810431791968813056 |