ArticleG3 (Bethesda, Md.)2020
On the Distribution of Tract Lengths During Adaptive Introgression.
Article in G3 (Bethesda, Md.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Replicated hybrid zones reveal genomic patterns of local adaptation and introgression in spruce.Molecular biology and evolution · 2026Article
- Recent advances in methods to characterize archaic introgression in modern humans.Genome research · 2026Review
- Signals of Ancestry-Specific Selection in Gentle Africanized Honey Bees.Genome biology and evolution · 2025Article
- Temporal Variation in Introgressed Segments' Length Statistics Computed from a Limited Number of Ancient Genomes Sheds Light on Past Admixture Pulses.Molecular biology and evolution · 2023Article
- Inferring multi-locus selection in admixed populations.PLoS genetics · 2023Article
- Localizing Post-Admixture Adaptive Variants with Object Detection on Ancestry-Painted Chromosomes.Molecular biology and evolution · 2023Article
- Human genetic admixture through the lens of population genomics.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- A dense linkage map for a large repetitive genome: discovery of the sex-determining region in hybridizing fire-bellied toads (Bombina bombina and Bombina variegata).G3 (Bethesda, Md.) · 2021Article
- The genomic consequences of hybridization.eLife · 2021Review
- The history and evolution of the Denisovan-Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Article
- Inferring Adaptive Introgression Using Hidden Markov Models.Molecular biology and evolution · 2021Article
- Chromosome-level reference genome of the European wasp spider Argiope bruennichi: a resource for studies on range expansion and evolutionary adaptation.GigaScience · 2021Article
- Versatile simulations of admixture and accurate local ancestry inference with mixnmatch and ancestryinfer.Molecular ecology resources · 2020Article
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Authors and funding
5 authors.
Funding
Abstract
Admixture is increasingly being recognized as an important factor in evolutionary genetics. The distribution of genomic admixture tracts, and the resulting effects on admixture linkage disequilibrium, can be used to date the timing of admixture between species or populations. However, the theory used for such prediction assumes selective neutrality despite the fact that many famous examples of admixture involve natural selection acting for or against admixture. In this paper, we investigate the effects of positive selection on the distribution of tract lengths. We develop a theoretical framework that relies on approximating the trajectory of the selected allele using a logistic function. By numerically calculating the expected allele trajectory, we also show that the approach can be extended to cases where the logistic approximation is poor due to the effects of genetic drift. Using simulations, we show that the model is highly accurate under most scenarios. We use the model to show that positive selection on average will tend to increase the admixture tract length. However, perhaps counter-intuitively, conditional on the allele frequency at the time of sampling, positive selection will actually produce shorter expected tract lengths. We discuss the consequences of our results in interpreting the timing of the introgression of
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