ArticleGenome biology and evolution2015
Adaptation to Low Salinity Promotes Genomic Divergence in Atlantic Cod (Gadus morhua L.).
Article in Genome biology and evolution, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.
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Who cites it
83 citing papers in PubMed, 214 citations in OpenAlex.
- Assessing local adaptation and divergence at early life stages within Eastern Baltic cod (Gadus morhua).Journal of fish biology · 2026Article
- Multiple modes of selection underlie repeated and human-mediated adaptation in a formerly migratory fish.Molecular biology and evolution · 2026Article
- Rapid genome modifications including chromosomal fusions and large-scale inversions are key features in Arctic codfish species.Genome biology · 2026Article
- From few to many: How non-model organisms' genomics broadened our understanding of molecular evolution.Genetics and molecular biology · 2026Article
- Genome-Scale Nuclear Markers Provide Strong Evidence for Species-Level Differentiation between the Mahseer FishesComputational and structural biotechnology journal · 2026Article
- An Evolutionary Mosaic Challenges Traditional Monitoring of a Foundation Species in a Coastal Environment-The Baltic Fucus vesiculosus.Molecular ecology · 2025Article
- Genetic Adaptation to Brackish Water and Spawning Season in European Cisco.Molecular ecology · 2025Article
- A century of anthropogenic perturbations impact genomic signatures of the iconic migratory Atlantic cod.Science advances · 2025Article
- Chromosomal Inversions Mediated by Tandem Insertions of Transposable Elements.Genome biology and evolution · 2025Article
- Resolving the Population Structure and Demographic History of the European Anchovy in the Northeast Atlantic: Tracking Historical and Contemporary Environmental Changes.Molecular ecology · 2025Article
- Genomic evidence for fisheries-induced evolution in Eastern Baltic cod.Science advances · 2025Article
- Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population.Nature communications · 2025Article
- Haemoglobin revisited: delineating population structure with the world's first molecular genetic marker used in fisheries research.Royal Society open science · 2025Article
- Divergent Population Structure in Five Common Rockfish Species of Puget Sound, WA Suggests the Need for Species-Specific Management.Molecular ecology · 2025Article
- Evolution of fast-growing piscivorous herring in the young Baltic Sea.Nature communications · 2024Article
- Article
- 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
- Seascape genomics reveals limited dispersal and suggests spatially varying selection among European populations of sea lamprey (Evolutionary applications · 2023Article
- The paradox of adaptive trait clines with nonclinal patterns in the underlying genes.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
23 more citing papers are in PubMed but not listed here.
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
How genomic selection enables species to adapt to divergent environments is a fundamental question in ecology and evolution. We investigated the genomic signatures of local adaptation in Atlantic cod (Gadus morhua L.) along a natural salinity gradient, ranging from 35‰ in the North Sea to 7‰ within the Baltic Sea. By utilizing a 12 K SNPchip, we simultaneously assessed neutral and adaptive genetic divergence across the Atlantic cod genome. Combining outlier analyses with a landscape genomic approach, we identified a set of directionally selected loci that are strongly correlated with habitat differences in salinity, oxygen, and temperature. Our results show that discrete regions within the Atlantic cod genome are subject to directional selection and associated with adaptation to the local environmental conditions in the Baltic- and the North Sea, indicating divergence hitchhiking and the presence of genomic islands of divergence. We report a suite of outlier single nucleotide polymorphisms within or closely located to genes associated with osmoregulation, as well as genes known to play important roles in the hydration and development of oocytes. These genes are likely to have key functions within a general osmoregulatory framework and are important for the survival of eggs and larvae, contributing to the buildup of reproductive isolation between the low-salinity adapted Baltic cod and the adjacent cod populations. Hence, our data suggest that adaptive responses to the environmental conditions in the Baltic Sea may contribute to a strong and effective reproductive barrier, and that Baltic cod can be viewed as an example of ongoing speciation.
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