ArticleMolecular biology and evolution2021
Genomic Evidence for Speciation with Gene Flow in Broadcast Spawning Marine Invertebrates.
Article in Molecular biology and evolution, 2021. 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, 39 citations in OpenAlex.
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- Limited genomic signatures of population collapse in the critically endangered black abalone (Haliotis cracherodii).Molecular ecology · 2025Article
- Divergent selection, recombination variability, and noncoding introgression drive speciation and adaptation in threadfin Eleutheronema.Communications biology · 2025Article
- Genomic regions of current low hybridisation mark long-term barriers to gene flow in scarce swallowtail butterflies.PLoS genetics · 2025Article
- Patterns of Genomic Heterogeneity in a Classic Field Cricket Mosaic Hybrid Zone.Ecology and evolution · 2024Article
- Contrasting population genetic structure of three semi-terrestrial brachyuran crabs on the coast of the Japanese archipelago.Ecology and evolution · 2024Article
- Limited genomic signatures of population collapse in the critically endangered black abalone (bioRxiv : the preprint server for biology · 2024Article
- Parthenogenomics: Insights on mutation rates and nucleotide diversity in parthenogeneticEcology and evolution · 2024Article
- Extensive introgression among strongylocentrotid sea urchins revealed by phylogenomics.Ecology and evolution · 2023Article
- Accumulation of gene copy number variations during the early phase of free-spawning abalone speciation.Ecology and evolution · 2023Article
- Application of palaeogenetic techniques to historic mollusc shells reveals phylogeographic structure in a New Zealand abalone.Molecular ecology resources · 2023Article
- Speciation genomics and the role of depth in the divergence of rockfishes (Ecology and evolution · 2022Article
- Ancient rivers shaped the current genetic diversity of the wood mouse (Apodemus speciosus) on the islands of the Seto Inland Sea, Japan.Zoological letters · 2022Article
- Population genomic analyses reveal hybridization and marked differences in genetic structure ofEcology and evolution · 2022Article
- Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination.Molecular biology and evolution · 2022Article
- Susceptibility of Four Abalone Species,Viruses · 2021Article
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Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
How early stages of speciation in free-spawning marine invertebrates proceed is poorly understood. The Western Pacific abalones, Haliotis discus, H. madaka, and H. gigantea, occur in sympatry with shared breeding season and are capable of producing viable F1 hybrids in spite of being ecologically differentiated. Population genomic analyses revealed that although the three species are genetically distinct, there is evidence for historical and ongoing gene flow among these species. Evidence from demographic modeling suggests that reproductive isolation among the three species started to build in allopatry and has proceeded with gene flow, possibly driven by ecological selection. We identified 27 differentiation islands between the closely related H. discus and H. madaka characterized by high FST and dA, but not high dXY values, as well as high genetic diversity in one H. madaka population. These genomic signatures suggest differentiation driven by recent ecological divergent selection in presence of gene flow outside of the genomic islands of differentiation. The differentiation islands showed low polymorphism in H. gigantea, and both high FST, dXY, and dA values between H. discus and H. gigantea, as well as between H. madaka and H. gigantea. Collectively, the Western Pacific abalones appear to occupy the early stages speciation continuum, and the differentiation islands associated with ecological divergence among the abalones do not appear to have acted as barrier loci to gene flow in the younger divergences but appear to do so in older divergences.
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