Genetica

, Volume 125, Issue 2, pp 231–241

Microsatellite Analysis of Olive Fly Populations in the Mediterranean Indicates a Westward Expansion of the Species

  • A.A. Augustinos
  • Z. Mamuris
  • E.E. Stratikopoulos
  • S. D’Amelio
  • A. Zacharopoulou
  • K.D. Mathiopoulos
Article

DOI: 10.1007/s10709-005-8692-y

Cite this article as:
Augustinos, A., Mamuris, Z., Stratikopoulos, E. et al. Genetica (2005) 125: 231. doi:10.1007/s10709-005-8692-y

Abstract

Bactrocera oleae is the major insect pest of the olive fruit. Twelve microsatellite loci isolated from the genome of this insect were used in a Mediterranean-wide population analysis. These loci were highly polymorphic with a mean number of alleles per locus of 10.42 and a mean effective number of alleles of 2.76. The analysis was performed on a sample of 671 flies collected from nineteen locations around the European part of the Mediterranean basin. Despite the high level of gene flow across the Mediterranean, results support the notion of a differentiation of three subpopulations: one of the Iberian Peninsula, one of Greece and Italy and one of Cyprus. In addition, the gradual decrease of heterozygosity from the Eastern to the Western part of the Mediterranean indicates a westward expansion of the species.

Key words:

Bactrocera (Dacus) oleaeolive flyTephritidaemicrosatellite polymorphismpopulation structurecolonization

Copyright information

© Springer 2005

Authors and Affiliations

  • A.A. Augustinos
    • 1
  • Z. Mamuris
    • 2
  • E.E. Stratikopoulos
    • 1
  • S. D’Amelio
    • 3
  • A. Zacharopoulou
    • 1
  • K.D. Mathiopoulos
    • 1
  1. 1.Department of BiologyUniversity of Patras26504Greece
  2. 2.Department of Biochemistry and BiotechnologyUniversity of Thessaly41221Greece
  3. 3.Department of Public Health SciencesUniversity of Rome “La Sapienza”RomaItaly