Phylogeography of Monochamus galloprovincialis, the European vector of the pinewood nematode

Haran Julien, Rousselet Jérôme, Tellez David, Roques Alain, Roux Géraldine. 2018. Phylogeography of Monochamus galloprovincialis, the European vector of the pinewood nematode. Journal of Pest Science, 91 (1) : 241-257.

Url - autres données associées : https://CRAN.R-project.org/package=vegan

Quartile : Outlier, Sujet : ENTOMOLOGY

Résumé : We reconstructed the phylogeography of European populations of Monochamus galloprovincialis (Coleoptera, Cerambycidae), the European vector of the pinewood nematode, Bursaphelenchus xylophilus. This study investigated the Quaternary history of M. galloprovincialis and tested whether environmental parameters and/or host tree species influenced the genetic structure of M. galloprovincialis populations. Twelve polymorphic microsatellite loci and a Bayesian analysis were applied to 1098 individuals of M. galloprovincialis from 45 European locations. The continental populations formed five main genetic clusters, typical of postglacial recolonization routes observed for temperate biota associated with pine trees. The distribution of clusters formed boundaries along mountain ranges, indicating a potential role of elevation as a large-scale barrier to dispersal for this species. The correlation between environmental parameters and the distribution of genetic clusters of M. galloprovincialis was investigated using a partial redundancy analysis and showed an effect of precipitation rather than host tree species. From an applied perspective, these results suggest that climatic conditions and elevation may constitute barriers to the dispersal of M. galloprovincialis and the associated PWN.

Mots-clés Agrovoc : Monochamus, Bursaphelenchus xylophilus, phylogénie, Pinus sylvestris, Pinus halepensis, Pinus pinaster, allèle, génotype, distribution géographique, altitude, pluviométrie, locus, polymorphisme génétique, dynamique des populations, Nematoda, ravageur des plantes, vecteur de maladie, relation hôte pathogène, Coleoptera

Mots-clés géographiques Agrovoc : Europe

Classification Agris : H10 - Ravageurs des plantes
L20 - Écologie animale

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Agences de financement européennes : European Commission

Programme de financement européen : FP7

Projets sur financement : (EU) Development of improved methods for detection, control and eradication of pine wood nematode in support of EU Plant Health policy

Auteurs et affiliations

• Haran Julien, CIRAD-BIOS-UMR CBGP (FRA) - auteur correspondant
• Rousselet Jérôme, INRA (FRA)
• Tellez David, INRA (FRA)
• Roques Alain, INRA (FRA)
• Roux Géraldine, INRA (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/585782/)

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