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Evidence for low-level hybridization between two allochronic populations of the pine processionary moth, Thaumetopoea pityocampa (Lepidoptera: Notodontidae)

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURBAN, Christian
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorGAUTIER, Mathieu
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorLEBLOIS, Raphaël
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
hal.structure.identifierSorbonne Universités (COMUE)
hal.structure.identifierEco-Anthropologie et Ethnobiologie [EAE]
dc.contributor.authorLANDES, Julie
hal.structure.identifierUniversidade de Lisboa = University of Lisbon = Université de Lisbonne [ULISBOA]
dc.contributor.authorSANTOS, Helena
hal.structure.identifierUniversidade Nova de Lisboa = NOVA University Lisbon [NOVA]
dc.contributor.authorPAIVA, Maria-Rosa
hal.structure.identifierUniversidade de Lisboa = University of Lisbon = Université de Lisbonne [ULISBOA]
dc.contributor.authorBRANCO, Manuela
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorKERDELHUE, Carole
dc.date.issued2016
dc.identifier.issn0024-4066
dc.description.abstractEnDivergence between populations sharing the same habitat can be initiated by different reproductive times, leading to allochronic differentiation. A spatially localized allochronic summer population (SP) of the pine processionary moth Thaumetopoea pityocampa, recently discovered in Portugal, occurs in sympatry with the local winter population (WP). We examined the level of genetic differentiation between the two populations and estimated the current gene flow within the spatial framework of their co-occurrence. Mitochondrial data indicated that the two sympatric populations were genetically closer than other WP populations. Conversely, microsatellite genotyping uncovered greater differentiation between the two sympatric populations than between allopatric ones. While male trapping confirmed that reproduction of SP and WP occurred at distinct times, clustering approaches demonstrated the presence of a few LateSP individuals emerging within the WP flight period, although genetically identified as SP. We also identified rare recent hybridization events apparently occurring mainly in the margins of the current SP range. The ongoing gene flow detected between the ancestral and the emerging allochronic populations revealed an incomplete reproductive isolation, which must therefore be taken into account and integrated with studies focussed on ecological drivers, so that a complete understanding of the ongoing speciation process might be achieved.
dc.language.isoen
dc.publisherLinnean Society of London
dc.subject.enallochrony
dc.subject.engene flow
dc.subject.enhybrid identification
dc.subject.enincipient speciation
dc.subject.ensympatry
dc.title.enEvidence for low-level hybridization between two allochronic populations of the pine processionary moth, Thaumetopoea pityocampa (Lepidoptera: Notodontidae)
dc.typeArticle de revue
dc.identifier.doi10.1111/bij.12829
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalBiological Journal of the Linnean Society
bordeaux.page311-328
bordeaux.volume119
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02633820
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02633820v1
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