Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod
The use of genetic markers under putative selection in population studies carries the potential for erroneous identification of populations and misassignment of individuals to population of origin. Selected markers are nevertheless attractive, especially in marine organisms that are characterized by...
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Online Access: | https://doi.org/10.5061/dryad.k718h66 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::3d4d161330a3632a5f7dc9fb184ad10f 2023-05-15T15:27:22+02:00 Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod Jorde, Per Erik Synnes, Ann-Elin Espeland, Sigurd Heiberg Sodeland, Marte Knutsen, Halvor 2019-10-05 https://doi.org/10.5061/dryad.k718h66 undefined unknown Dryad https://dx.doi.org/10.5061/dryad.k718h66 http://dx.doi.org/10.5061/dryad.k718h66 lic_creative-commons 10.5061/dryad.k718h66 oai:easy.dans.knaw.nl:easy-dataset:118792 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118792 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c statistical assignment population genetics natural selection population-of-origin marine fish 2015 2012 Gadus morhua Life sciences medicine and health care envir anthro-se Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2019 fttriple https://doi.org/10.5061/dryad.k718h66 2023-01-22T16:53:09Z The use of genetic markers under putative selection in population studies carries the potential for erroneous identification of populations and misassignment of individuals to population of origin. Selected markers are nevertheless attractive, especially in marine organisms that are characterized by weak population structure at neutral loci. Highly fecund species may tolerate the cost of strong selective mortality during early life stages, potentially leading to a shift in offspring genotypes away from the parental proportions. In Atlantic cod, recent genetic studies have uncovered different genotype clusters apparently representing phenotypically cryptic populations that coexist in coastal waters. Here, we tested if a high‐graded SNP panel specifically designed to classify individual cod to population of origin may be unreliable because of natural selection acting on the SNPs or their linked background. Temporal samples of cod were collected from two fjords, starting at the earliest life stage (pelagic eggs) and carried on until late autumn (bottom‐settled juveniles), covering the period during summer of high natural mortality. Despite the potential for selective mortality during the study period, we found no evidence for selection, as both cod types occurred throughout the season, already in the earliest egg samples, and there was no evidence for a shift during the season in the proportions of one or the other type. We conclude that high‐graded marker panels under putative natural selection represent a valid and useful tool for identifying biological population structure in this highly fecund species and presumably in others. datapacketThe data packet is a gzip archive containing three data files (metadata.csv, 25snp_reference.gen, and 25snpNEW.gen) and one text file (datapacket.txt) describing contents of datafiles. Dataset atlantic cod Gadus morhua Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
statistical assignment population genetics natural selection population-of-origin marine fish 2015 2012 Gadus morhua Life sciences medicine and health care envir anthro-se |
spellingShingle |
statistical assignment population genetics natural selection population-of-origin marine fish 2015 2012 Gadus morhua Life sciences medicine and health care envir anthro-se Jorde, Per Erik Synnes, Ann-Elin Espeland, Sigurd Heiberg Sodeland, Marte Knutsen, Halvor Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
topic_facet |
statistical assignment population genetics natural selection population-of-origin marine fish 2015 2012 Gadus morhua Life sciences medicine and health care envir anthro-se |
description |
The use of genetic markers under putative selection in population studies carries the potential for erroneous identification of populations and misassignment of individuals to population of origin. Selected markers are nevertheless attractive, especially in marine organisms that are characterized by weak population structure at neutral loci. Highly fecund species may tolerate the cost of strong selective mortality during early life stages, potentially leading to a shift in offspring genotypes away from the parental proportions. In Atlantic cod, recent genetic studies have uncovered different genotype clusters apparently representing phenotypically cryptic populations that coexist in coastal waters. Here, we tested if a high‐graded SNP panel specifically designed to classify individual cod to population of origin may be unreliable because of natural selection acting on the SNPs or their linked background. Temporal samples of cod were collected from two fjords, starting at the earliest life stage (pelagic eggs) and carried on until late autumn (bottom‐settled juveniles), covering the period during summer of high natural mortality. Despite the potential for selective mortality during the study period, we found no evidence for selection, as both cod types occurred throughout the season, already in the earliest egg samples, and there was no evidence for a shift during the season in the proportions of one or the other type. We conclude that high‐graded marker panels under putative natural selection represent a valid and useful tool for identifying biological population structure in this highly fecund species and presumably in others. datapacketThe data packet is a gzip archive containing three data files (metadata.csv, 25snp_reference.gen, and 25snpNEW.gen) and one text file (datapacket.txt) describing contents of datafiles. |
format |
Dataset |
author |
Jorde, Per Erik Synnes, Ann-Elin Espeland, Sigurd Heiberg Sodeland, Marte Knutsen, Halvor |
author_facet |
Jorde, Per Erik Synnes, Ann-Elin Espeland, Sigurd Heiberg Sodeland, Marte Knutsen, Halvor |
author_sort |
Jorde, Per Erik |
title |
Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
title_short |
Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
title_full |
Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
title_fullStr |
Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
title_full_unstemmed |
Data from: Can we rely on selected genetic markers for population identification? evidence from coastal Atlantic cod |
title_sort |
data from: can we rely on selected genetic markers for population identification? evidence from coastal atlantic cod |
publisher |
Dryad |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.k718h66 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
10.5061/dryad.k718h66 oai:easy.dans.knaw.nl:easy-dataset:118792 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118792 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.k718h66 http://dx.doi.org/10.5061/dryad.k718h66 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.k718h66 |
_version_ |
1766357801232236544 |