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dc.contributor.authorYusuf, Leeban Hussien
dc.contributor.authorTyukmaeva, Venera
dc.contributor.authorHoikkala, Anneli
dc.contributor.authorRitchie, Michael Gordon
dc.date.accessioned2022-11-29T16:30:04Z
dc.date.available2022-11-29T16:30:04Z
dc.date.issued2022-12-23
dc.identifier281804259
dc.identifiera8837fcc-47f6-4e8d-b262-323e9c23ba76
dc.identifier85142895090
dc.identifier85142895090
dc.identifier000892170500001
dc.identifier.citationYusuf , L H , Tyukmaeva , V , Hoikkala , A & Ritchie , M G 2022 , ' Divergence and introgression among the virilis group of Drosophila ' , Evolution Letters , vol. 6 , no. 6 , pp. 537-551 . https://doi.org/10.1002/evl3.301en
dc.identifier.issn2056-3744
dc.identifier.otherORCID: /0000-0001-7913-8675/work/124079172
dc.identifier.urihttps://hdl.handle.net/10023/26516
dc.descriptionFunding: Natural Environment Research Council (Grant Number(s): NE/J020818/1) NERC Biomolecular Analysis Facility (Grant Number(s): NBAF852).en
dc.description.abstractSpeciation with gene flow is now widely regarded as common. However, the frequency of introgression between recently diverged species and the evolutionary consequences of gene flow are still poorly understood. The virilis group of Drosophila contains 12 species that are geographically widespread and show varying levels of prezygotic and postzygotic isolation. Here, we use de novo genome assemblies and whole-genome sequencing data to resolve phylogenetic relationships and describe patterns of introgression and divergence across the group. We suggest that the virilis group consists of three, rather than the traditional two, subgroups. Some genes undergoing rapid sequence divergence across the group were involved in chemical communication and desiccation tolerance, and may be related to the evolution of sexual isolation and adaptation. We found evidence of pervasive phylogenetic discordance caused by ancient introgression events between distant lineages within the group, and more recent gene flow between closely related species. When assessing patterns of genome-wide divergence in species pairs across the group, we found no consistent genomic evidence of a disproportionate role for the X chromosome as has been found in other systems. Our results show how ancient and recent introgressions confuse phylogenetic reconstruction, but may play an important role during early radiation of a group.
dc.format.extent15
dc.format.extent1280033
dc.language.isoeng
dc.relation.ispartofEvolution Lettersen
dc.subjectDivergenceen
dc.subjectGene flowen
dc.subjectIntrogressionen
dc.subjectPhylogenomicsen
dc.subjectReproductive isolationen
dc.subjectSpeciationen
dc.subjectQH301 Biologyen
dc.subjectQH426 Geneticsen
dc.subjectEcology, Evolution, Behavior and Systematicsen
dc.subjectGeneticsen
dc.subjectDASen
dc.subjectMCCen
dc.subject.lccQH301en
dc.subject.lccQH426en
dc.titleDivergence and introgression among the virilis group of Drosophilaen
dc.typeJournal itemen
dc.contributor.sponsorNERCen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Bioinformatics Uniten
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.identifier.doi10.1002/evl3.301
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/J020818/1en


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