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History of the invasive African olive tree in Australia and Hawaii: evidence for sequential bottlenecks and hybridization with the Mediterranean olive

hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorBESNARD, Guillaume
hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorDUPUY, Jérémy
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLARTER, Maximilian
hal.structure.identifierAustralian Botanic Garde
dc.contributor.authorCUNEO, Peter
hal.structure.identifierDepartment of Primary Industries
dc.contributor.authorCOOKE, David
hal.structure.identifierEvolution et Diversité Biologique [EDB]
hal.structure.identifierInstituto Gulbenkian de Ciência
dc.contributor.authorCHIKHI, Lounes
dc.date.issued2014
dc.identifier.issn1752-4563
dc.description.abstractEnHumans have introduced plants and animals into new continents and islands with negative effects on local species. This has been the case of the olive that was introduced in Australia, New Zealand and Pacific islands where it became invasive. Two subspecies were introduced in Australia, and each successfully invaded a specific area: the African olive in New South Wales (NSW) and the Mediterranean olive in South Australia. Here, we examine their origins and spread and analyse a large sample of native and invasive accessions with chloroplast and nuclear microsatellites. African olive populations from the invaded range exhibit two South African chlorotypes hence supporting an introduction from South Africa, while populations from South Australia exhibit chlorotypes of Mediterranean cultivars. Congruently, nuclear markers support the occurrence of two lineages in Australia but demonstrate that admixture took place, attesting that they hybridized early after introduction. Furthermore, using an approximate Bayesian computation framework, we found strong support for the serial introduction of the African olive from South Africa to NSW and then from NSW to Hawaii. The taxon experienced successive bottlenecks that did not preclude invasion, meaning that rapid decisions need to be taken to avoid naturalization where it has not established a large population yet.
dc.language.isoen
dc.publisherBlackwell
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectadmixture
dc.subjectbiologic invasion
dc.subjectmicrosatellites
dc.subjectOlea europaea
dc.subject.enapproximate Bayesian computation
dc.subject.enintrogression
dc.subject.enplastid DNA
dc.subject.encuspidata
dc.title.enHistory of the invasive African olive tree in Australia and Hawaii: evidence for sequential bottlenecks and hybridization with the Mediterranean olive
dc.typeArticle de revue
dc.identifier.doi10.1111/eva.12110
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEvolutionary Applications
bordeaux.page195–211
bordeaux.volume7
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02633715
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02633715v1
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