Titel
Pervasive Introgression During Rapid Diversification of the European Mountain Genus Soldanella (L.) (Primulaceae)
Autor*in
Marek Slovák
Department of Evolution and Systematics, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Institute of Botany
Andrea Melichárková
Department of Evolution and Systematics, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Institute of Botany
Eliška Gbúrová Štubňová
Department of Evolution and Systematics, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Institute of Botany
... show all
Abstract
Hybridization is a key mechanism involved in lineage diversification and speciation, especially in ecosystems that experienced repeated environmental oscillations. Recently radiated plant groups, which have evolved in mountain ecosystems impacted by historical climate change provide an excellent model system for studying the impact of gene flow on speciation. We combined organellar (whole-plastome) and nuclear genomic data (RAD-seq) with a cytogenetic approach (rDNA FISH) to investigate the effects of hybridization and introgression on evolution and speciation in the genus Soldanella (snowbells, Primulaceae). Pervasive introgression has already occurred among ancestral lineages of snowbells and has persisted throughout the entire evolutionary history of the genus, regardless of the ecology, cytotype, or distribution range size of the affected species. The highest extent of introgression has been detected in the Carpathian species, which is also reflected in their extensive karyotype variation. Introgression occurred even between species with dysploid and euploid cytotypes, which were considered to be reproductively isolated. The magnitude of introgression detected in snowbells is unprecedented in other mountain genera of the European Alpine System investigated hitherto. Our study stresses the prominent evolutionary role of hybridization in facilitating speciation and diversification on the one hand, but also enriching previously isolated genetic pools.
Stichwort
chloroplast capturediversificationdysploidyEuropean Alpine systemintrogressionnuclear-cytoplasmic discordanceribosomal DNA
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
phaidra.univie.ac.at/o:2045125
Erschienen in
Titel
Systematic Biology
Band
72
Ausgabe
3
ISSN
1063-5157
Erscheinungsdatum
2022
Seitenanfang
491
Seitenende
504
Publication
Oxford University Press (OUP)
Fördergeber
Österreichischer Austauschdienst (OeAD) — 2015-05-15-001
Erscheinungsdatum
2022
Zugänglichkeit
Rechte
Rechteangabe
© The Author(s) 2022
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