European Journal of Entomology
      ISSN 1210-5759 (print), 1802-8829 (online)

Eur. J. Entomol. 2012, 109(3): 445–455  

Population structures of three Calliptamus spp. (Orthoptera: Acrididae) across the Western Mediterranean Basin

BLANCHET E.*, LECOQ M., SWORD G.A., PAGES C., BLONDIN L., BILLOT C., RIVALLAN R., FOUCART A., VASSAL J.-M., RISTERUCCI A.-M. & CHAPUIS M.-P.

We conducted a comparative population genetic analysis of levels of genetic variation and its geographical structuring in three closely related species of grasshopper that co-occur in the Mediterranean Basin: Calliptamus italicus, C. barbarus and C. wattenwylianus. In the western part of their distributions 5 populations of C. italicus, 13 of C. barbarus and 10 of C. wattenwylianus were sampled. Bootstrap re-sampling of populations and microsatellite loci within each species indicated a lower level of genetic diversity and higher level of genetic differentiation in C. barbarus, which is less of an outbreak pest species than either of the other Calliptamus species studied. This may be due to lower effective sizes of non-outbreak populations and/or lower gene flow among them.

Address
CIRAD UPR Bioagresseurs: Analyse et maîtrise du risque, F-34398 Montpellier, France; e-mail: blanchet.elodie@gmail.com

Keywords
Orthoptera, Acrididae, Calliptamus, population genetic, microsatellite, closely related species, potential pests

accepted: Mar 9th, 2012    published: Jul 2nd, 2012    URL: http://www.eje.cz/scripts/viewabstract.php?abstract=1729


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