ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2020
The limits to parapatric speciation 3: evolution of strong reproductive isolation in presence of gene flow despite limited ecological differentiation.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Genomic incompatibilities are persistent barriers when speciation happens with gene flow in Formica ants.Molecular biology and evolution · 2026Article
- Multi-disciplinary evidence illuminates the speciation history of a monophyletic yet dimorphic lily group.Plant diversity · 2025Article
- On the impermanence of species: The collapse of genetic incompatibilities in hybridizing populations.Evolution; international journal of organic evolution · 2022Article
- Reproductive isolation via polygenic local adaptation in sub-divided populations: Effect of linkage disequilibria and drift.PLoS genetics · 2022Article
- Imbalanced segregation of recombinant haplotypes in hybrid populations reveals inter- and intrachromosomal Dobzhansky-Muller incompatibilities.PLoS genetics · 2022Article
- Finding Hybrid Incompatibilities Using Genome Sequences from Hybrid Populations.Molecular biology and evolution · 2021Article
- Origin of Species before Origin of Life: The Role of Speciation in Chemical Evolution.Life (Basel, Switzerland) · 2021Review
- Towards the completion of speciation: the evolution of reproductive isolation beyond the first barriers.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gene flow tends to impede the accumulation of genetic divergence. Here, we determine the limits for the evolution of postzygotic reproductive isolation in a model of two populations that are connected by gene flow. We consider two selective mechanisms for the creation and maintenance of a genetic barrier: local adaptation leads to divergence among incipient species due to selection against migrants, and Dobzhansky-Muller incompatibilities (DMIs) reinforce the genetic barrier through selection against hybrids. In particular, we are interested in the maximum strength of the barrier under a limited amount of local adaptation, a challenge that many incipient species may initially face. We first confirm that with classical two-locus DMIs, the maximum amount of local adaptation is indeed a limit to the strength of a genetic barrier. However, with three or more loci and cryptic epistasis, this limit holds no longer. In particular, we identify a minimal configuration of three epistatically interacting mutations that is sufficient to confer strong reproductive isolation. This article is part of the theme issue 'Towards the completion of speciation: the evolution of reproductive isolation beyond the first barriers'.
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