ArticleProceedings. Biological sciences2019
Thermal selection as a driver of marine ecological speciation.
Article in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Genomic insights into adaptive evolution of Island brown rats (Rattus norvegicus): evidence from Iturup Island in the Russian Far East.BMC ecology and evolution · 2025Article
- Up, Down, and All Around: Courtship Behavior Deviants and Genetic Divergence in the Reef-Dwelling Bioluminescent Ostracod,Ecology and evolution · 2025Article
- Hybridization as driving force for cryptic species diversity in the Caribbean coral genus Madracis.Scientific reports · 2025Article
- Host-Associated Genetic Differentiation in the Face of Ongoing Gene Flow: Ecological Speciation in a Pathogenic Parasite of Freshwater Fish.Molecular biology and evolution · 2025Article
- Management and conservation implications of cryptic population substructure for two commercially exploited fishes (Merluccius spp.) in southern Africa.Molecular ecology resources · 2025Article
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- Local adaptation with gene flow in a highly dispersive shark.Evolutionary applications · 2024Article
- Fatty acid metabolism decreased while sexual selection increased in brown rats spreading south.iScience · 2023Article
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- Speciation genomics and the role of depth in the divergence of rockfishes (Ecology and evolution · 2022Article
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- The sardine run in southeastern Africa is a mass migration into an ecological trap.Science advances · 2021Article
- Reevaluating claims of ecological speciation inEcology and evolution · 2021Article
- Genomics-informed models reveal extensive stretches of coastline under threat by an ecologically dominant invasive species.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of twoPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Article
- Multi-model seascape genomics identifies distinct environmental drivers of selection among sympatric marine species.BMC evolutionary biology · 2020Article
- Signals of selection in the mitogenome provide insights into adaptation mechanisms in heterogeneous habitats in a widely distributed pelagic fish.Scientific reports · 2020Article
- Trans-Atlantic Distribution and Introgression as Inferred from Single Nucleotide Polymorphism: MusselsGenes · 2020Article
- Fine-Scale Population Genetic Structure and Parapatric Cryptic Species of Kuruma Shrimp (Frontiers in genetics · 2020Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Intraspecific genetic structure in widely distributed marine species often mirrors the boundaries between temperature-defined bioregions. This suggests that the same thermal gradients that maintain distinct species assemblages also drive the evolution of new biodiversity. Ecological speciation scenarios are often invoked to explain such patterns, but the fact that adaptation is usually only identified when phylogenetic splits are already evident makes it impossible to rule out the alternative scenario of allopatric speciation with subsequent adaptation. We integrated large-scale genomic and environmental datasets along one of the world's best-defined marine thermal gradients (the South African coastline) to test the hypothesis that incipient ecological speciation is a result of divergence linked to the thermal environment. We identified temperature-associated gene regions in a coastal fish species that is spatially homogeneous throughout several temperature-defined biogeographic regions based on selectively neutral markers. Based on these gene regions, the species is divided into geographically distinct regional populations. Importantly, the ranges of these populations are delimited by the same ecological boundaries that define distinct infraspecific genetic lineages in co-distributed marine species, and biogeographic disjunctions in species assemblages. Our results indicate that temperature-mediated selection represents an early stage of marine ecological speciation in coastal regions that lack physical dispersal barriers.
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