Dispersal ability in codling moth: mark-release-recapture experiments and kinship analysis
2012
Margaritopoulos, John T. | Voudouris, Costas Ch | Olivares, Jérôme | Sauphanor, Benoit, B. | Mamuris, Zissis | Tsitsipis, John A. | Franck, Pierre | Dept Biochem & Biotechnol ; University of Thessaly [Volos] (UTH) | Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH) ; Institut National de la Recherche Agronomique (INRA) | PENED project; European Union (European Social Fund); Hellenic State (Ministry of Development, General Secretariat for Research and Technology); Hellenic Private Sector, in the framework of Measure 8.3 of Operational Programme 'Competitiveness' (the 3rd Community Support Programme); bilateral Joint Research and Technology project between Greece and France; Greek General Secretariat for Research and Technology
International audience
Показать больше [+] Меньше [-]Английский. 1 The present study focused on the dispersal patterns in the codling moth because such information is fundamental for determining the dynamics and genetics of the pest populations and for developing efficient management programmes. 2 We implemented markreleaserecapture experiments (MRR) with both male and female codling moths of two laboratory and one wild population using a sex pheromone and pear ester as attractants in delta traps. The experiments were conducted in apple orchards in central Greece over two consecutive years (20072008). In addition, kinship assignment tests were applied on 303 genotyped individuals (11 microsatellite loci) from two contiguous apple orchards in central Greece aiming to estimate the dispersal of fertilized females. 3 Both MRR and kinship analysis revealed that most male and female adults dispersed within 80 m, whereas some individuals moved at longer distances (maximum distance of approximately 200 m). A Bayesian analysis on microsatellite data revealed that exchange rates of codling moths between neighbouring orchards ranged among generations from 17.6 to 32.7%. The exchange rate between these orchards estimated by kinship analysis was 25.6% over all generations. 4 The collected data confirm the view of the sedentary nature of coding moth and indicate that genotypes able to migrate at long distances are not present in the studied area. The availability of food resources within orchards during the growing season is one possible factor that could favour this sedentary behaviour.
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Эту запись предоставил Institut national de la recherche agronomique