Gene Flow Among Cydia pomonella (Lepidoptera: Tortricidae) Geographic and Host Populations in South Africa

Gene Flow Among <I>Cydia pomonella</I> (Lepidoptera: Tortricidae) Geographic and Host Populations in South Africa

“…This was verified by mark-release-recapture studies in the field and flight mill experiments in the laboratory (Schumacher et al 1997;Dorn et al 1999;Keil et al 2001). Our results are consistent with findings in South Africa, northern Italy and Switzerland, where limited gene flow and significant genetic differentiation between different local geographic regions were found (Timm et al 2006;Thaler et al 2008;Chen & Dorn 2010). Similar results were also reported in the closely related species with small flight capacity, Grapholita molesta (Timm et al 2008;Torriani et al 2010;Kirk et al 2013 a, b;Zheng et al 2013 ), as well as in aphids (Loxdale et al 1993;Miller et al 2003).…”

“…Based on cluster analysis, populations sampled in the 2 regions differed in genetic structure, and they formed 2 distinct clades in the NJ tree. The codling moth has traditionally been regarded as a sedentary insect (Keil et al 2001;Timm et al 2006;Thaler et al 2008;Chen & Dorn 2010), and the limited gene flow implied by the significantly different population genetic characteristics of the 2 separate regions is likely the result of the limited dispersal capacity of C. pomonella. This was verified by mark-release-recapture studies in the field and flight mill experiments in the laboratory (Schumacher et al 1997;Dorn et al 1999;Keil et al 2001).…”

“…Population genetics data and more specifically genetic differentiation and gene flow patterns of target insect populations can provide sound baseline information to develop efficient insect pest-management strategies including the SIT (Klassen 2005;Krafsur 2005;Timm et al 2006;Chen & Dorn 2010;Vreysen et al 2010;Zheng et al 2013). These data can reveal the distance over which members of a given species typically disperse, estimate the degree of genetic isolation of target populations from each other and from untargeted populations, determine whether a sub-population or sibling species exists, and establish the origin of outbreaks or reintroductions (Krafsur 2005;Chen & Dorn 2010).…”

Utilización de Microsatélites para la Determinación de la Polilla de la Manzana Cydia pomonella L. (Lepidoptera: Tortricidae) en Chile Central

“…Estas estrategias de control requieren información más detallada sobre la estructura y dinámica de las poblaciones de la polilla de la manzana, en particular sobre la dispersión y migración de la plaga tanto a nivel del huerto y su entorno como a nivel regional. Indirectamente es posible obtener esta información en forma eficiente a partir de la estimación cuantitativa de la variabilidad genética de las poblaciones de C. pomonella mediante la utilización de marcadores moleculares (Timm et al, 2006). En esta línea se han realizado estudios con isoenzimas en poblaciones de C. pomonella de Francia y Suiza, los cuales no encontraron diferencias significativas entre poblaciones de diversos orígenes geográficos y plantas hospederas (Buès y Toubon, 1992;Buès et al, 1995).…”

Μελέτη της βιο-οικολογίας της καρπόκαψας του μήλου Cydia pomonella και της ανθεκτικότητάς της σε εντομοκτόνα

“…οο 00 oo 00 00 00 00 CO 00 σ cr Επίσης, η ανθεκτικότητα στο deltamehtrin καθώς και στους ρυθμιστές ανάπτυξης έχει παρατηρηθεί σε πολλές χώρες (Sauphanor et al 2000, Reuveny & Cohen, 2004, Timm et al 2006, Stara & Kocourek, 2007, loriatti et al 2007). …”