Unveiling the Genome-Wide Consequences of Range Expansion and Mating System Transitions in Primula vulgaris

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dc.authoridAeschbacher, Simon/0000-0001-5217-1926
dc.authoridMora Carrera, Emiliano/0000-0001-8237-4265
dc.authoridKeller, Barbara/0000-0002-7903-8938
dc.contributor.authorMora-Carrera, Emiliano
dc.contributor.authorStubbs, Rebecca L.
dc.contributor.authorPotente, Giacomo
dc.contributor.authorYousefi, Narjes
dc.contributor.authorAeschbacher, Simon
dc.contributor.authorKeller, Barbara
dc.contributor.authorChoudhury, Rimjhim Roy
dc.date.accessioned2025-01-21T16:55:47Z
dc.date.available2025-01-21T16:55:47Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractGenetic diversity is heterogeneously distributed among populations of the same species, due to the joint effects of multiple demographic processes, including range contractions and expansions, and mating systems shifts. Here, we ask how both processes shape genomic diversity in space and time in the classical Primula vulgaris model. This perennial herb originated in the Caucasus region and was hypothesized to have expanded westward following glacial retreat in the Quaternary. Moreover, this species is a long-standing model for mating system transitions, exemplified by shifts from heterostyly to homostyly. Leveraging a high-quality reference genome of the closely related Primula veris and whole-genome resequencing data from both heterostylous and homostylous individuals from populations encompassing a wide distribution of P. vulgaris, we reconstructed the demographic history of P. vulgaris. Results are compatible with the previously proposed hypothesis of range expansion from the Caucasus region approximately 79,000 years ago and suggest later shifts to homostyly following rather than preceding postglacial colonization of England. Furthermore, in accordance with population genetic theoretical predictions, both processes are associated with reduced genetic diversity, increased linkage disequilibrium, and reduced efficacy of purifying selection. A novel result concerns the contrasting effects of range expansion versus shift to homostyly on transposable elements, for the former, process is associated with changes in transposable element genomic content, while the latter is not. Jointly, our results elucidate how the interactions among range expansion, transitions to selfing, and Quaternary climatic oscillations shape plant evolution.
dc.description.sponsorshipGraduate Campus office; Natural England
dc.description.sponsorshipWe thank Natural England for permits and landowners for access to populations. We thank the Functional Genomics Center UZH for help during library preparation. We thank the editor and two anonymous reviewers for their comments that improved this manuscript.
dc.identifier.doi10.1093/gbe/evae208
dc.identifier.issn1759-6653
dc.identifier.issue10
dc.identifier.pmid39340447
dc.identifier.urihttps://doi.org/10.1093/gbe/evae208
dc.identifier.urihttps://hdl.handle.net/20.500.12587/25843
dc.identifier.volume16
dc.identifier.wosWOS:001329995500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.ispartofGenome Biology and Evolution
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241229
dc.subjectrange expansions; genomic selfing syndrome; mating system transitions; heterostyly; homostyly; quaternary glaciations
dc.titleUnveiling the Genome-Wide Consequences of Range Expansion and Mating System Transitions in Primula vulgaris
dc.typeArticle

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