ArticleGenetics2018
The Limits to Parapatric Speciation II: Strengthening a Preexisting Genetic Barrier to Gene Flow in Parapatry.
Article in Genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed.
- Genomic incompatibilities are persistent barriers when speciation happens with gene flow in Formica ants.Molecular biology and evolution · 2026Article
- On the impermanence of species: The collapse of genetic incompatibilities in hybridizing populations.Evolution; international journal of organic evolution · 2022Article
- Selection on modifiers of genetic architecture under migration load.PLoS genetics · 2022Article
- Highly Replicated Evolution of Parapatric Ecotypes.Molecular biology and evolution · 2021Article
- Finding Hybrid Incompatibilities Using Genome Sequences from Hybrid Populations.Molecular biology and evolution · 2021Article
- The limits to parapatric speciation 3: evolution of strong reproductive isolation in presence of gene flow despite limited ecological differentiation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- 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
- In search of the Goldilocks zone for hybrid speciation.PLoS genetics · 2018Article
- The Effects on Parapatric Divergence of Linkage between Preference and Trait Loci versus Pleiotropy.Genes · 2018Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
By encompassing the whole continuum between allopatric and sympatric scenarios, parapatric speciation includes many potential scenarios for the evolution of new species. Here, we investigate how a genetic barrier to gene flow, that relies on a single postzygotic genetic incompatibility, may further evolve under ongoing migration. We consider a continent island model with three loci involved in pairwise Dobzhansky-Muller incompatibilities (DMIs). Using an analytic approach, we derive the conditions for invasion of a new mutation and its consequences for the strength and stability of the initial genetic barrier. Our results show that the accumulation of genetic incompatibilities in the presence of gene flow is under strong selective constraints. In particular, preexisting incompatibilities do not always facilitate the invasion of further barrier genes. If new mutations do invade, they will often weaken or destroy the barrier rather than strengthening it. We conclude that migration is highly effective at disrupting the so-called "snowball effect", the accelerated accumulation of DMIs that has been described for allopatric populations en route to reproductive isolation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.