Mitochondrial barcodes are diagnostic of shared refugia but not species in hybridizing oak gallwasps

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dc.authorid0000-0002-0838-3857en_US
dc.authorid0000-0002-2737-696Xen_US
dc.authorid0000-0002-3502-1122en_US
dc.contributor.authorNicholls, James A.
dc.contributor.authorChallis, Richard J.
dc.contributor.authorMutun, Serap
dc.contributor.authorStone, Graham N.
dc.date.accessioned2021-06-23T19:29:24Z
dc.date.available2021-06-23T19:29:24Z
dc.date.issued2012
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Biyoloji Bölümüen_US
dc.description.abstractMitochondrial DNA barcodes provide a simple taxonomic tool for systematic and ecological research, with particular benefit for poorly studied or species-rich taxa. Barcoding assumes genetic diversity follows species boundaries; however, many processes disrupt species-level monophyly of barcodes leading to incorrect classifications. Spatial population structure, particularly when shared across closely related and potentially hybridizing taxa, can invalidate barcoding approaches yet few data exist to examine its impacts. We test how shared population structure across hybridizing species impacts upon mitochondrial barcodes by sequencing the cytochrome b gene for 518 individuals of four well-delimited Western Palaearctic gallwasp species within the Andricus quercuscalicis species group. Mitochondrial barcodes clustered individuals into mixed-species clades corresponding to refugia, with no difference in within- and between-species divergence. Four nuclear genes were also sequenced from 4 to 11 individuals per refugial population of each species. Multi-locus analyses of these data supported established species, with no support for the refugial clustering across species seen in mitochondrial barcodes. This pattern is consistent with mitochondrial introgression among populations of species sharing the same glacial refugium, such that mitochondrial barcodes identify a shared history of population structure rather than species. Many taxa show phylogeographic structure across glacial refugia, suggesting that mitochondrial barcoding may fail when applied to other sets of co-distributed, closely related species. Robust barcoding approaches must sample extensively across population structure to disentangle spatial from species-level variation. Methods incorporating multiple unlinked loci are also essential to accommodate coalescent variation among genes and provide power to resolve recently diverged species.en_US
dc.identifier.doi10.1111/j.1365-294X.2012.05683.x
dc.identifier.endpage4062en_US
dc.identifier.issn0962-1083
dc.identifier.issn1365-294X
dc.identifier.issue16en_US
dc.identifier.pmid22724511en_US
dc.identifier.scopus2-s2.0-84864415611en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage4051en_US
dc.identifier.urihttps://doi.org/10.1111/j.1365-294X.2012.05683.x
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7166
dc.identifier.volume21en_US
dc.identifier.wosWOS:000306897500014en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorMutun, Serap
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofMolecular Ecologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDNA Barcodingen_US
dc.subjectIntrogressionen_US
dc.subjectMulti-locusen_US
dc.subjectSpatial Population Structureen_US
dc.titleMitochondrial barcodes are diagnostic of shared refugia but not species in hybridizing oak gallwaspsen_US
dc.typeArticleen_US

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