ArticleGenome biology and evolution2020
Divergence-Based Introgression Polarization.
Article in Genome biology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Weak but Repeated Patterns of Co-Introgression of Nuclear OXPHOS Genes and Mitochondrial DNA in Iberian Wall Lizards.Genome biology and evolution · 2026Article
- Selecting a Window Size for Phylogenomic Analyses of Whole Genome Alignments Using AIC.Systematic biology · 2026Article
- Prezygotic barriers effectively limit hybridization in a rapid evolutionary radiation.The New phytologist · 2024Article
- Selection Shapes the Genomic Landscape of Introgressed Ancestry in a Pair of Sympatric Sea Urchin Species.Genome biology and evolution · 2024Article
- Genome sequencing reveals evidence of adaptive variation in the genus Zea.Nature genetics · 2022Article
- Ghost lineages can invalidate or even reverse findings regarding gene flow.PLoS biology · 2022Article
- Review
- Chromosome-scale inference of hybrid speciation and admixture with convolutional neural networks.Molecular ecology resources · 2021Article
- Biased Gene Retention in the Face of Introgression Obscures Species Relationships.Genome biology and evolution · 2020Article
- Detecting cryptic ghost lineage introgression in four-taxon genomic datasets.Applications in plant sciencesArticle
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3 authors.
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Abstract
Introgressive hybridization results in the transfer of genetic material between species, often with fitness implications for the recipient species. The development of statistical methods for detecting the signatures of historical introgression in whole-genome data has been a major area of focus. Although existing techniques are able to identify the taxa that exchanged genes during introgression using a four-taxon system, most methods do not explicitly distinguish which taxon served as donor and which as recipient during introgression (i.e., polarization of introgression directionality). Existing methods that do polarize introgression are often only able to do so when there is a fifth taxon available and that taxon is sister to one of the taxa involved in introgression. Here, we present divergence-based introgression polarization (DIP), a method for polarizing introgression using patterns of sequence divergence across whole genomes, which operates in a four-taxon context. Thus, DIP can be applied to infer the directionality of introgression when additional taxa are not available. We use simulations to show that DIP can polarize introgression and identify potential sources of bias in the assignment of directionality, and we apply DIP to a well-described hominin introgression event.
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