ArticleMolecular ecology2024
Conserved islands of divergence associated with adaptive variation in sockeye salmon are maintained by multiple mechanisms.
Article in Molecular ecology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
- Phylogenetically Diverse Introgression Drives Subtle Population Structure in Pacific Rockfishes.Molecular ecology · 2026Article
- The genomic architecture of local adaptation in two connected populations of three-spined stickleback.G3 (Bethesda, Md.) · 2026Article
- Genome-Wide Population Structure of Lake Whitefish (Evolutionary applications · 2026Article
- Methylation-associated mutagenesis underlies variation in the mutation spectrum across eukaryotes.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Genetic Data Reveal Nonlocal Juvenile Recruitment and Variable Seasonal Movement of a Highly Mobile Marine Fish Across Alaska.Evolutionary applications · 2026Article
- Human Impacts on Great Lakes Walleye Sander vitreus Structure, Diversity and Local Adaptation.Molecular ecology · 2025Article
- The Genomics Revolution in Nonmodel Species: Predictions vs. Reality for Salmonids.Molecular ecology · 2025Review
- Divergent selection, recombination variability, and noncoding introgression drive speciation and adaptation in threadfin Eleutheronema.Communications biology · 2025Article
- Genomic Landscape of Divergence in Ballan Wrasse (Labrus bergylta).Molecular ecology · 2025Article
- Phylogenetically diverse introgression drives subtle population structure in Pacific rockfishes.bioRxiv : the preprint server for biology · 2025Article
- Methylation-associated mutagenesis underlies variation in the mutation spectrum across eukaryotes.bioRxiv : the preprint server for biology · 2025Article
- Development of SNP Panels from Low-Coverage Whole Genome Sequencing (lcWGS) to Support Indigenous Fisheries for Three Salmonid Species in Northern Canada.Molecular ecology resources · 2025Article
- Whole Genome Sequencing Reveals Substantial Genetic Structure and Evidence of Local Adaptation in Alaskan Red King Crab.Evolutionary applications · 2025Article
- Conserved islands of divergence associated with adaptive variation in sockeye salmon are maintained by multiple mechanisms.Molecular ecology · 2024Article
- Article
- Characterization and distribution of a 14-Mb chromosomal inversion in native populations of rainbow trout (Oncorhynchus mykiss).G3 (Bethesda, Md.) · 2024Article
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7 authors.
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Abstract
Local adaptation is facilitated by loci clustered in relatively few regions of the genome, termed genomic islands of divergence. The mechanisms that create and maintain these islands and how they contribute to adaptive divergence is an active research topic. Here, we use sockeye salmon as a model to investigate both the mechanisms responsible for creating islands of divergence and the patterns of differentiation at these islands. Previous research suggested that multiple islands contributed to adaptive radiation of sockeye salmon. However, the low-density genomic methods used by these studies made it difficult to fully elucidate the mechanisms responsible for islands and connect genotypes to adaptive variation. We used whole genome resequencing to genotype millions of loci to investigate patterns of genetic variation at islands and the mechanisms that potentially created them. We discovered 64 islands, including 16 clustered in four genomic regions shared between two isolated populations. Characterisation of these four regions suggested that three were likely created by structural variation, while one was created by processes not involving structural variation. All four regions were small (< 600 kb), suggesting low recombination regions do not have to span megabases to be important for adaptive divergence. Differentiation at islands was not consistently associated with established population attributes. In sum, the landscape of adaptive divergence and the mechanisms that create it are complex; this complexity likely helps to facilitate fine-scale local adaptation unique to each population.
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