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From sympatry to parapatry: a rapid change in the spatial context of incipient allochronic speciation

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURBAN, Christian
hal.structure.identifierUniversidade de Lisboa = University of Lisbon [ULISBOA]
hal.structure.identifierInstituto Superior de Agronomia [Lisboa] [ISA]
dc.contributor.authorROCHA, Susana
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
hal.structure.identifierInstitut de Biologie Computationnelle [IBC]
dc.contributor.authorLEBLOIS, Raphaël
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorROSSI, Jean-Pierre
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorSAUNE, Laure
hal.structure.identifierUniversidade de Lisboa = University of Lisbon [ULISBOA]
hal.structure.identifierInstituto Superior de Agronomia [Lisboa] [ISA]
dc.contributor.authorBRANCO, Manuela
hal.structure.identifierCentre de Biologie pour la Gestion des Populations [UMR CBGP]
dc.contributor.authorKERDELHUE, Carole
dc.date.issued2020-02
dc.identifier.issn0269-7653
dc.description.abstractEnSpeciation is nowadays recognized as a dynamic process in which the respective roles of forces driving ecological differentiation and reproductive isolation can change through time and space. Incipient speciation events are particularly useful to follow such processes that are not tractable when considering well-differentiated taxa. A promising case study was discovered in the pine processionary moth, Thaumetopoea pityocampa, a Mediterranean defoliator of Pinus species, for which allochrony acting as an automatic magic trait was recognized as the major driver of an incipient speciation process. In Portugal, a unique population with a shifted phenology, known as the summer population (SP), co-occurs with a population following the typical life cycle, known as the winter population (WP). We monitored male activity of both populations in the Leiria region, i.e. over the whole SP distribution range using a systematic sampling along two transects, and studied Portuguese WPs at a larger geographical scale to explore their genetic diversity and spatial pattern of differentiation. Results showed that the WPs were genetically more diverse than the SP, with a strong pattern of isolation by distance both at large and small spatial scales, while the SP was very homogeneous over its whole range, without signature of its recent spatial expansion. Contrary to our expectations, no F1 hybrids were identified, even though we found an extended flight period of the SP, overlapping with the beginning of the WP reproductive period. Interestingly, the SP was found to be mostly limited to the sea shore where the WP is now scarce or absent, which could suggest competitive exclusion. Once clearly occurring in a sympatric context, the allochronic differentiation tends to develop nowadays in parapatry.
dc.description.sponsorshipNouveaux outils statistiques pour l'analyse spatiale des données génétiques
dc.description.sponsorshipMediterranean Center for Environment and Biodiversity
dc.language.isoen
dc.publisherSpringer Verlag
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectPhenology
dc.subject.enAllochronic speciation
dc.subject.enSympatry
dc.subject.enParapatry
dc.subject.enHybridization
dc.subject.enThaumetopoea pityocampa
dc.subject.enPhenology
dc.title.enFrom sympatry to parapatry: a rapid change in the spatial context of incipient allochronic speciation
dc.typeArticle de revue
dc.identifier.doi10.1007/s10682-019-10021-4
dc.subject.halSciences du Vivant [q-bio]/Biologie animale
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalEvolutionary Ecology
bordeaux.page101–121
bordeaux.volume34
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02624010
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02624010v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Evolutionary%20Ecology&rft.date=2020-02&rft.volume=34&rft.issue=1&rft.spage=101%E2%80%93121&rft.epage=101%E2%80%93121&rft.eissn=0269-7653&rft.issn=0269-7653&rft.au=BURBAN,%20Christian&ROCHA,%20Susana&LEBLOIS,%20Rapha%C3%ABl&ROSSI,%20Jean-Pierre&SAUNE,%20Laure&rft.genre=article


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