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Genetica

, Volume 140, Issue 4–6, pp 181–187 | Cite as

Mitochondrial haplotypes reveal olive fly (Bactrocera oleae) population substructure in the Mediterranean

  • Barbara van Asch
  • Isabel Pereira-Castro
  • Fernando ReiEmail author
  • Luís Teixeira da CostaEmail author
Article

Abstract

The olive fly (Bactrocera oleae) is the most important olive tree (Olea europaea) pest. In the Mediterranean basin, where 98 % of its main hosts are concentrated, it causes major agricultural losses, due to its negative effect on production and quality of both olive and olive oil. Previous phylogeographic analyses have established that Mediterranean olive fly populations are distinct from other Old World populations, but did not agree on the specific population substructure within this region. In order to achieve a higher resolution of the diversity of olive fly populations, particularly in Central and Western Mediterranean (home to 70 % of the world production), we comparatively analyzed a set of samples from Portugal in the context of published mitochondrial sequences across the species’ worldwide range. Strong evidence of population substructure was found in the Central and Western Mediterranean area, with two clearly separate phylogenetic branches. Together with previously published data, our results strongly support the existence of at least three distinct Mediterranean populations of the olive fly, raise the possibility of additional regional substructure and suggest specific avenues for future research. This knowledge can be instrumental in the development of better management and control strategies for a major pest of Mediterranean agriculture.

Keywords

Bactrocera oleae Mitochondrial Mediterranean Phylogeography Population structure Olive fly 

Notes

Acknowledgments

This work was supported by Fundação para a Ciência e a Tecnologia (FCT) through grants to BA (SFRH/BPD/73108/2010), IP-C (SFRH/BD/44264/2008) and LTC (Ciência 2008-ICAAM). The Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) is an Associate Laboratory of the Portuguese MCTES and is partially supported by FCT.

Supplementary material

10709_2012_9669_MOESM1_ESM.pdf (620 kb)
Supplementary material 1 (PDF 619 kb)

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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP)PortoPortugal
  2. 2.Faculdade de Medicina da Universidade do Porto (FMUP)PortoPortugal
  3. 3.Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM)Universidade de ÉvoraÉvoraPortugal
  4. 4.Departamento de FitotecniaUniversidade de ÉvoraÉvoraPortugal

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