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dc.contributor.authorJørgensen, Marte Holten
dc.contributor.authorEhrich, Dorothee
dc.contributor.authorSchmickl, Roswitha
dc.contributor.authorKoch, Marcus A.
dc.contributor.authorBrysting, Anne Krag
dc.date.accessioned2012-03-01T12:23:08Z
dc.date.available2012-03-01T12:23:08Z
dc.date.issued2011
dc.description.abstractEffects of polyploidisation on gene flow between natural populations are little known. Central European diploid and tetraploid populations of Arabidopsis arenosa and A. lyrata are here used to study interspecific and interploidal gene flow, using a combination of nuclear and plastid markers. Ploidal levels were confirmed by flow cytometry. Network analyses clearly separated diploids according to species. Tetraploids and diploids were highly intermingled within species, and some tetraploids intermingled with the other species, as well. Isolation with migration analyses suggested interspecific introgression from tetraploid A. arenosa to tetraploid A. lyrata and vice versa, and some interploidal gene flow, which was unidirectional from diploid to tetraploid in A. arenosa and bidirectional in A. lyrata. Interspecific genetic isolation at diploid level combined with introgression at tetraploid level indicates that polyploidy may buffer against negative consequences of interspecific hybridisation. The role of introgression in polyploid systems may, however, differ between plant species, and even within the small genus Arabidopsis, we find very different evolutionary fates when it comes to introgression.en
dc.identifier.citationBMC Evolutionary Biology 11(2011) nr. 346en
dc.identifier.cristinIDFRIDAID 874348
dc.identifier.doidoi: 10.1186/1471-2148-11-346
dc.identifier.issn1471-2148
dc.identifier.urihttps://hdl.handle.net/10037/3878
dc.identifier.urnURN:NBN:no-uit_munin_3600
dc.language.isoengen
dc.publisherBioMed Centralen
dc.rights.accessRightsopenAccess
dc.subjectVDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474en
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474en
dc.titleInterspecific and interploidal gene flow in Central European Arabidopsis (Brassicaceae)en
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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