A migration-associated supergene reveals loss of biocomplexity in Atlantic cod

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dc.contributor.author Kess, Tony
dc.contributor.author Bentzen, Paul
dc.contributor.author Lehnert, Sarah J.
dc.contributor.author Sylvester, Emma V.A.
dc.contributor.author Lien, Sigbjorn
dc.contributor.author Kent, Matthew P.
dc.contributor.author Sinclair-Waters, Marion
dc.contributor.author Morris, Corey J.
dc.contributor.author Regular, Paul
dc.contributor.author Fairweather, Robert
dc.contributor.author Bradbury, Ian R.
dc.date.accessioned 2019-08-07T07:38:01Z
dc.date.available 2019-08-07T07:38:01Z
dc.date.issued 2019-06-26
dc.identifier.citation Kess , T , Bentzen , P , Lehnert , S J , Sylvester , E V A , Lien , S , Kent , M P , Sinclair-Waters , M , Morris , C J , Regular , P , Fairweather , R & Bradbury , I R 2019 , ' A migration-associated supergene reveals loss of biocomplexity in Atlantic cod ' , Science Advances , vol. 5 , no. 6 , 2461 . https://doi.org/10.1126/sciadv.aav2461
dc.identifier.other PURE: 125490399
dc.identifier.other PURE UUID: cbe7cde8-332e-4573-aa4f-1049030e5c89
dc.identifier.other WOS: 000473798500021
dc.identifier.other Scopus: 85068128087
dc.identifier.other ORCID: /0000-0001-7371-4547/work/60408043
dc.identifier.uri http://hdl.handle.net/10138/304305
dc.description.abstract Chromosome structural variation may underpin ecologically important intraspecific diversity by reducing recombination within supergenes containing linked, coadapted alleles. Here, we confirm that an ancient chromosomal rearrangement is strongly associated with migratory phenotype and individual genetic structure in Atlantic cod (Gadus morhua) across the Northwest Atlantic. We reconstruct trends in effective population size over the last century and reveal declines in effective population size matching onset of industrialized harvest (after 1950). We find different demographic trajectories between individuals homozygous for the chromosomal rearrangement relative to heterozygous or homozygous individuals for the noninverted haplotype, suggesting different selective histories across the past 150 years. These results illustrate how chromosomal structural diversity can mediate fine-scale genetic, phenotypic, and demographic variation in a highly connected marine species and show how overfishing may have led to loss of biocomplexity within Northern cod stock. en
dc.format.extent 8
dc.language.iso eng
dc.relation.ispartof Science Advances
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 1184 Genetics, developmental biology, physiology
dc.subject EFFECTIVE POPULATION-SIZE
dc.subject LINKAGE DISEQUILIBRIUM
dc.subject SELECTIVE SWEEPS
dc.subject GADUS-MORHUA
dc.subject R PACKAGE
dc.subject EVOLUTION
dc.subject INVERSIONS
dc.subject DIVERGENCE
dc.subject SCANS
dc.subject CONSEQUENCES
dc.title A migration-associated supergene reveals loss of biocomplexity in Atlantic cod en
dc.type Article
dc.contributor.organization Evolution, Conservation, and Genomics
dc.contributor.organization External Funding
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1126/sciadv.aav2461
dc.relation.issn 2375-2548
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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