Data from: The extent and meaning of hybridization and introgression between Siberian spruce (Picea obovata) and Norway spruce (Picea abies): cryptic refugia as stepping stones to the west?

dc.contributor.affiliationInstitute of Biosciences and Bioresources - Tsuda, Yoshiaki
dc.contributor.affiliationUppsala University - Chen, Jun
dc.contributor.affiliationUppsala University - Stocks, Michael
dc.contributor.affiliationUppsala University - Källman, Thomas
dc.contributor.affiliationNorwegian Institute of Bioeconomy Research - Sønstebø, Jørn Henrik
dc.contributor.affiliationUppsala University - Parducci, Laura
dc.contributor.affiliationInstitute of Plant and Animal Ecology - Semerikov, Vladimir
dc.contributor.affiliationSwiss Federal Institute for Forest, Snow and Landscape Research - Sperisen, Christoph
dc.contributor.affiliationUniversity of Helsinki - Politov, Dmitry
dc.contributor.affiliationUniversity of Helsinki - Ronkainen, Tiina
dc.contributor.affiliationUniversity of Helsinki - Väliranta, Minna
dc.contributor.affiliationUppsala University - Vendramini, Giovanni Giuseppe
dc.contributor.affiliationNorwegian Institute of Bioeconomy Research - Tollefsrud, Mari Mette
dc.contributor.affiliationUppsala University - Lascoux, Martin
dc.contributor.affiliationInstitute of Biosciences and Bioresources - Vendramin, Giovanni Giuseppe
dc.contributor.authorTsuda, Yoshiaki
dc.contributor.authorChen, Jun
dc.contributor.authorStocks, Michael
dc.contributor.authorKällman, Thomas
dc.contributor.authorSønstebø, Jørn Henrik
dc.contributor.authorParducci, Laura
dc.contributor.authorSemerikov, Vladimir
dc.contributor.authorSperisen, Christoph
dc.contributor.authorPolitov, Dmitry
dc.contributor.authorRonkainen, Tiina
dc.contributor.authorVäliranta, Minna
dc.contributor.authorVendramini, Giovanni Giuseppe
dc.contributor.authorTollefsrud, Mari Mette
dc.contributor.authorLascoux, Martin
dc.contributor.authorVendramin, Giovanni Giuseppe
dc.coverage.spatialEurasia
dc.date.accessioned2025-03-24T15:19:02Z
dc.date.issued2016-04-14
dc.date.issued2016-04-14
dc.descriptionBoreal species were repeatedly exposed to ice ages and went through cycles of contraction and expansion while sister species alternated periods of contact and isolation. The resulting genetic structure is consequently complex, and demographic inferences are intrinsically challenging. The range of Norway spruce (Picea abies) and Siberian spruce (Picea obovata) covers most of northern Eurasia; yet their geographical limits and histories remain poorly understood. To delineate the hybrid zone between the two species and reconstruct their joint demographic history, we analysed variation at nuclear SSR and mitochondrial DNA in 102 and 88 populations, respectively. The dynamics of the hybrid zone was analysed with approximate Bayesian computation (ABC) followed by posterior predictive structure plot reconstruction and the presence of barriers across the range tested with estimated effective migration surfaces. To estimate the divergence time between the two species, nuclear sequences from two well-separated populations of each species were analysed with ABC. Two main barriers divide the range of the two species: one corresponds to the hybrid zone between them, and the other separates the southern and northern domains of Norway spruce. The hybrid zone is centred on the Urals, but the genetic impact of Siberian spruce extends further west. The joint distribution of mitochondrial and nuclear variation indicates an introgression of mitochondrial DNA from Norway spruce into Siberian spruce. Overall, our data reveal a demographic history where the two species interacted frequently and where migrants originating from the Urals and the West Siberian Plain recolonized northern Russia and Scandinavia using scattered refugial populations of Norway spruce as stepping stones towards the west.
dc.identifierhttps://doi.org/10.5061/dryad.6bf38
dc.identifier.urihttps://hydatakatalogi-test-24.it.helsinki.fi/handle/123456789/10349
dc.rightsOpen
dc.rights.licensecc-zero
dc.subjectdivergence
dc.subjectPicea obovata
dc.subjectPicea abies
dc.subjectspruce
dc.titleData from: The extent and meaning of hybridization and introgression between Siberian spruce (Picea obovata) and Norway spruce (Picea abies): cryptic refugia as stepping stones to the west?
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