Integrative phylogenetic, phylogeographic and morphological characterisation of the Unio crassus species complex reveals cryptic diversity with important conservation implications

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dc.abstract.enThe global decline of freshwater mussels and their crucial ecological services highlight the need to understand their phylogeny, phylogeography and patterns of genetic diversity to guide conservation efforts. Such knowledge is urgently needed for Unio crassus, a highly imperilled species originally widespread throughout Europe and southwest Asia. Recent studies have resurrected several species from synonymy based on mitochondrial data, revealing U. crassus to be a complex of cryptic species. To address long-standing taxonomic uncertainties hindering effective conservation, we integrate morphometric, phylogenetic, and phylogeographic analyses to examine species diversity within the U. crassus complex across its entire range. Phylogenetic analyses were performed using cytochrome c oxidase subunit I (815 specimens from 182 populations) and, for selected specimens, whole mitogenome sequences and Anchored Hybrid Enrichment (AHE) data on ∼ 600 nuclear loci. Mito-nuclear discordance was detected, consistent with mitochondrial DNA gene flow between some species during the Pliocene and Pleistocene. Fossil-calibrated phylogenies based on AHE data support a Mediterranean origin for the U. crassus complex in the Early Miocene. The results of our integrative approach support 12 species in the group: the previously recognised Unio bruguierianus, Unio carneus, Unio crassus, Unio damascensis, Unio ionicus, Unio sesirmensis, and Unio tumidiformis, and the reinstatement of five nominal taxa: Unio desectus stat. rev., Unio gontierii stat. rev., Unio mardinensis stat. rev., Unio nanus stat. rev., and Unio vicarius stat. rev. Morphometric analyses of shell contours reveal important morphospace overlaps among these species, highlighting cryptic, but geographically structured, diversity. The distribution, taxonomy, phylogeography, and conservation of each species are succinctly described.
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Zoologii
dc.contributor.authorLopes-Lima, M.
dc.contributor.authorGeist, J.
dc.contributor.authorEgg, S.
dc.contributor.authorBeran, L.
dc.contributor.authorBikashvili, A.
dc.contributor.authorVan Bocxlaer, B.
dc.contributor.authorBogan, A.E.
dc.contributor.authorBolotov, I.N.
dc.contributor.authorChelpanovskaya, O.A.
dc.contributor.authorDouda, K.
dc.contributor.authorFernandes, V.
dc.contributor.authorGomes-dos-Santos, A.
dc.contributor.authorGonçalves, D.V.
dc.contributor.authorGürlek, M.E.
dc.contributor.authorJohnson, N.A.
dc.contributor.authorKaraouzas, I.
dc.contributor.authorKebapçı, Ü.
dc.contributor.authorKondakov, A.V.
dc.contributor.authorKuehn, R.
dc.contributor.authorLajtner, J.
dc.contributor.authorMumladze, L.
dc.contributor.authorNagel, K.-O.
dc.contributor.authorNeubert, E.
dc.contributor.authorÖsterling, M.
dc.contributor.authorPfeiffer, J.
dc.contributor.authorPrié, V.
dc.contributor.authorRiccardi, N.
dc.contributor.authorSell, J.
dc.contributor.authorSchneider, LD.
dc.contributor.authorShumka, S.
dc.contributor.authorSîrbu, I.
dc.contributor.authorSkujienė, G.
dc.contributor.authorSmith, CH.
dc.contributor.authorSousa, R.
dc.contributor.authorStöckl, K.
dc.contributor.authorTaskinen, J.
dc.contributor.authorTeixeira, A.
dc.contributor.authorTodorov, M.
dc.contributor.authorTrichkova, T.
dc.contributor.authorUrbańska, Maria
dc.contributor.authorVälilä, S.
dc.contributor.authorVarandas, S.
dc.contributor.authorVeríssimo, J.
dc.contributor.authorVikhrev, I.V.
dc.contributor.authorWoschitz, G.
dc.contributor.authorZając, K.
dc.contributor.authorZając, T.
dc.contributor.authorZanatta, D.
dc.contributor.authorZieritz, A.
dc.contributor.authorZogaris, S.
dc.contributor.authorFroufe, E.
dc.date.access2024-12-19
dc.date.accessioned2024-12-19T11:07:22Z
dc.date.available2024-12-19T11:07:22Z
dc.date.copyright2024-03-05
dc.date.issued2024
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,6
dc.description.numberJune 2024
dc.description.points140
dc.description.versionfinal_published
dc.description.volume195
dc.identifier.doi10.1016/j.ympev.2024.108046
dc.identifier.eissn1095-9513
dc.identifier.issn1055-7903
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2253
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S1055790324000381
dc.languageen
dc.pbn.affiliationbiological sciences
dc.relation.ispartofMolecular Phylogenetics and Evolution
dc.relation.pagesart. 108046
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOTHER
dc.subject.enconservation
dc.subject.enfreshwater mussels
dc.subject.enphylogeography
dc.subject.enUnionida
dc.titleIntegrative phylogenetic, phylogeographic and morphological characterisation of the Unio crassus species complex reveals cryptic diversity with important conservation implications
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume195