ArticleGenome biology and evolution2016
"Islands of Divergence" in the Atlantic Cod Genome Represent Polymorphic Chromosomal Rearrangements.
Article in Genome biology and evolution, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.
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67 citing papers in PubMed, 139 citations in OpenAlex.
- Interchromosomal Translocations and Large Deletions Drive the Evolution of the Outlier Chromosome in the Smallest Photosynthetic Eukaryote.Genome biology and evolution · 2026Article
- Coexisting Atlantic Cod Ecotypes in the Barents Sea: An Issue for Managing Fisheries.Evolutionary applications · 2026Article
- Genetic Structure of Blue Ling,Ecology and evolution · 2026Article
- Rapid genome modifications including chromosomal fusions and large-scale inversions are key features in Arctic codfish species.Genome biology · 2026Article
- Putting Structural Variants Into Practice: The Role of Chromosomal Inversions in the Management of Marine Environments.Molecular ecology · 2025Review
- Genomic Footprints of Hybridisation in North Atlantic Eels (Anguilla anguilla and A. rostrata).Molecular ecology · 2025Article
- Reference genome bias in light of species-specific chromosomal reorganization and translocations.Genome biology · 2025Article
- Comparative Whole Genome Phylogeography Reveals Genetic Distinctiveness of Appalachian Populations of Boreal Songbirds.Evolutionary applications · 2025Article
- Reduced-Representation Sequencing Detects Trans-Arctic Connectivity and Local Adaptation in Polar Cod (Boreogadus saida).Molecular ecology · 2025Article
- Genomic Islands of Divergence Between Drosophila yakuba Subspecies are Predominantly Driven by Chromosomal Inversions and the Recombination Landscape.Molecular ecology · 2025Article
- Allochrony in Atlantic Lumpfish: Genomic and Otolith Shape Divergence Between Spring and Autumn Spawners.Ecology and evolution · 2025Article
- Haemoglobin revisited: delineating population structure with the world's first molecular genetic marker used in fisheries research.Royal Society open science · 2025Article
- Tracing 600 years of long-distance Atlantic cod trade in medieval and post-medieval Oslo using stable isotopes and ancient DNA.Proceedings. Biological sciences · 2024Article
- Genetics in the Ocean's Twilight Zone: Population Structure of the Glacier Lanternfish Across Its Distribution Range.Evolutionary applications · 2024Article
- Genomic architecture and population structure of Boreogadus saida from Canadian waters.Scientific reports · 2024Article
- Gene presence/absence variation iniScience · 2023Article
- A few essential genetic loci distinguish Penstemon species with flowers adapted to pollination by bees or hummingbirds.PLoS biology · 2023Article
- Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s).Evolutionary applications · 2023Article
- Lacustrine speciation associated with chromosomal inversion in a lineage of riverine fishes.Evolution; international journal of organic evolution · 2023Article
- Review
7 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In several species genetic differentiation across environmental gradients or between geographically separate populations has been reported to center at "genomic islands of divergence," resulting in heterogeneous differentiation patterns across genomes. Here, genomic regions of elevated divergence were observed on three chromosomes of the highly mobile fish Atlantic cod (Gadus morhua) within geographically fine-scaled coastal areas. The "genomic islands" extended at least 5, 9.5, and 13 megabases on linkage groups 2, 7, and 12, respectively, and coincided with large blocks of linkage disequilibrium. For each of these three chromosomes, pairs of segregating, highly divergent alleles were identified, with little or no gene exchange between them. These patterns of recombination and divergence mirror genomic signatures previously described for large polymorphic inversions, which have been shown to repress recombination across extensive chromosomal segments. The lack of genetic exchange permits divergence between noninverted and inverted chromosomes in spite of gene flow. For the rearrangements on linkage groups 2 and 12, allelic frequency shifts between coastal and oceanic environments suggest a role in ecological adaptation, in agreement with recently reported associations between molecular variation within these genomic regions and temperature, oxygen, and salinity levels. Elevated genetic differentiation in these genomic regions has previously been described on both sides of the Atlantic Ocean, and we therefore suggest that these polymorphisms are involved in adaptive divergence across the species distributional range.
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