Tracking the colonization patterns of an expanding forest pest and its natural enemies using molecular markers

Autor: Simonato, Mauro, Sauné, Laure, Kerdelhué, Carole, Magnoux, Emmanuelle, Rousselet, Jérôme
Přispěvatelé: Unité de recherche Zoologie Forestière (URZF), Institut National de la Recherche Agronomique (INRA), Le Studium Loire Valley Institute for Advanced Studies [Orléans, France], Centre de Biologie pour la Gestion des Populations (UMR CBGP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), This work was supported by Le Studium, Loire Valley Institute for Advanced Studies, Orelans & Tours, France, under Marie Sklodowska-Curie grant agreement no.665790, European Commission., Le Studium - Loire Valley Institute for Advanced Studies, European Project: 665790,H2020,H2020-MSCA-COFUND-2014,SMART LOIRE VALLEY(2015), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Le Studium Multidisciplinary Journal
[Contract] 1, Le Studium-Loire Valley Institute for Advanced Studies. 2017, pp.37-42
Popis: International audience; Climate change is influencing population dynamics of several pest insect species leading to the expansion of their range. Range expansion can be driven also by human-mediated dispersal, with the establishment of new insect populations in suitable areas far from their native range. In this process, interactions between insects and their natural enemies can change due to new environmental conditions or to different rate of dispersion. In recent years, pine processionary moth (PPM), one of the main forest pests in the Mediterranean region, is expanding its range favored by both higher winter mean temperatures and accidental human-mediated transportation. Here we outlined the genetic structure of PPM along its range in France using 23 microsatellites loci, characterizing the main patterns of expansion of this species and identifying the source populations of new colonies in the expansion areas. These data can be employed for developing assignment tools to genetically characterize PPM for a quick identification of their origin area. Finally, we developed a new set of microsatellite primers for the PPM specialist egg-parasitoid in order to track its dispersion following its host in the expanding areas. The low genetic variability found, not directly useful for tracking parasitoid expansion, shed light on the role of bacterial endosymbionts in the population genetic structure of this species.
Databáze: OpenAIRE