title: Nine polymorphic microsatellite loci from the psyllid Cacopsylla pruni (Scopoli), the vector of European stone fruit yellows.
abstract: Cacopsylla pruni is the vector of European stone fruit yellows, a quarantine disease of Prunus trees. Nine polymorphic microsatellite markers were developed from enriched DNA libraries. Allelic variability was assessed in a collection of 149 females obtained from five localities covering a large geographical area in France. The number of detected alleles ranged from 8 to 37. Within the localities, observed and expected heterozygosities averaged across loci ranged from 0.39 to 0.55, and from 0.68 to 0.81, respectively. A heterozygote deficiency was detected for almost all loci, possibly due to a high null allele frequency. Other possible causes of the homozygote excess (mode of reproduction, inbreeding, assortative mating or Wahlund effect) are discussed. These variable microsatellite loci can provide tools to assess overall genetic variation in this important vector species. They will be used to search for population structure and migration patterns of C. pruni.
authors.affiliation: INRA, Unité Mixte de Recherche Biologie et Génétique des Interactions Plante-Parasite, Campus International de Baillarguet, CIRAD TA A-54/K, 34398 Montpellier cedex 5, France. sauvion@supagro.inra.fr
authors.forename: Nicolas
authors.initials: N
authors.lastname: Sauvion
authors.forename: Olivier
authors.initials: O
authors.lastname: Lachenaud
authors.forename: Gwenaelle
authors.initials: G
authors.lastname: Mondor-Genson
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Rasplus
authors.forename: Gérard
authors.initials: G
authors.lastname: Labonne