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Evolutionary history of Castanea sativa in the Caucasus driven by Middle and Late Pleistocene paleoenvironmental changes

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dc.abstract.enDue to global climate cooling and aridification since the Paleogene, members of the Neogene flora were extirpated from the Northern Hemisphere or were confined to a few refugial areas. For some species, the final reduction/extinction came in the Pleistocene, but some others have survived climatic transformations up to the present. This has occurred in Castanea sativa, a species of high commercial value in Europe and a significant component of the Caucasian forests’ biodiversity. In contrast to the European range, neither the historical biogeography nor the population genetic structure of the species in its isolated Caucasian range has been clarified. Here, based on a survey of 21 natural populations from the Caucasus and a single one from Europe, we provide a likely biogeographic reconstruction and genetic diversity details. By applying Bayesian inference, species distribution modelling and fossil pollen data, we estimated (i) the time of the Caucasian—European divergence during the Middle Pleistocene, (ii) the time of divergence among Caucasian lineages and (iii) outlined the glacial refugia for species. The climate changes related to the Early–Middle Pleistocene Transition are proposed as the major drivers of the intraspecific divergence and European–Caucasian disjunction for the species, while the impact of the last glacial cycle was of marginal importance.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Hodowli Lasu
dc.contributor.authorBeridze, Berika
dc.contributor.authorSękiewicz, Katarzyna
dc.contributor.authorWalas, Łukasz
dc.contributor.authorThomas, Peter A
dc.contributor.authorDanelia, Irina
dc.contributor.authorKvartskhava, Giorgi
dc.contributor.authorFarzaliyev, Vahid
dc.contributor.authorBruch, Angela A
dc.contributor.authorDering, Monika
dc.date.access2025-10-27
dc.date.accessioned2025-10-27T11:23:47Z
dc.date.available2025-10-27T11:23:47Z
dc.date.copyright2023-08-29
dc.date.issued2023
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>Due to global climate cooling and aridification since the Paleogene, members of the Neogene flora were extirpated from the Northern Hemisphere or were confined to a few refugial areas. For some species, the final reduction/extinction came in the Pleistocene, but some others have survived climatic transformations up to the present. This has occurred in Castanea sativa, a species of high commercial value in Europe and a significant component of the Caucasian forests’ biodiversity. In contrast to the European range, neither the historical biogeography nor the population genetic structure of the species in its isolated Caucasian range has been clarified. Here, based on a survey of 21 natural populations from the Caucasus and a single one from Europe, we provide a likely biogeographic reconstruction and genetic diversity details. By applying Bayesian inference, species distribution modelling and fossil pollen data, we estimated (i) the time of the Caucasian—European divergence during the Middle Pleistocene, (ii) the time of divergence among Caucasian lineages and (iii) outlined the glacial refugia for species. The climate changes related to the Early–Middle Pleistocene Transition are proposed as the major drivers of the intraspecific divergence and European–Caucasian disjunction for the species, while the impact of the last glacial cycle was of marginal importance.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financeother
dc.description.financecost11000,00
dc.description.if2,6
dc.description.number5
dc.description.points100
dc.description.versionfinal_published
dc.description.volume15
dc.identifier.doi10.1093/aobpla/plad059
dc.identifier.issn2041-2851
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5475
dc.identifier.weblinkhttp://academic.oup.com/aobpla/article/15/5/plad059/7252944
dc.languageen
dc.pbn.affiliationforestry
dc.relation.ispartofAoB PLANTS
dc.relation.pagesplad059
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.endivergence time
dc.subject.engenetic diversity
dc.subject.enniche modelling
dc.subject.enpopulation structure
dc.subject.enEarly-Middle Pleistocene Transition
dc.subject.enrefugia
dc.subject.ensweet chestnut
dc.titleEvolutionary history of Castanea sativa in the Caucasus driven by Middle and Late Pleistocene paleoenvironmental changes
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume15
project.funder.nameResearch Project