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Genetic structure of Ips duplicatus (Sahlberg, 1836) (Coleoptera, Scolytidae) populations from Europe and Asia F. LAKATOS1, W. GRODZKI2, Q.-H. ZHANG3 AND CH. STAUFFER4 1 University of West-Hungary, Institute of Forest and Wood Protection, Sopron, Hungary, [email protected] 2 Forest Research Institute, Laboratory of Mountain Forest Protection, Krakow, Poland, [email protected] 3 Swedish University of Agricultural Sciences, Department of Crop Science, Alnarp, Sweden, [email protected] 4 University of Natural Resources & Life Sciences, Institute of Forest Entomology, Forest Pathology and Forest Protection, Vienna, Austria, [email protected] ABSTRACT: The double spined spruce engaver beetle (Ips duplicatus Sahlberg, 1836) has its original distribution area in the Palearctic from Scandinavia through some parts of NorthEastern Europe to Northern Asia. Previous data are rather sporadic from central Europe, where the species became a concern as a forest pest recently. However the species invaded the southern part of Poland, the Czech Republic, Austria and Slovakia in the recent decades. I. duplicatus usually occurs together with Ips typographus on Norway spruce (Picea abies). Therefore together with the morphological similarities and analogues in the gallery construction the damages and significance of I. duplicatus are often underestimated. Nevertheless the species expanded his distribution area from north to the south, which is rather a unique phenomena under the recently invaded insect species. The aim of our study was to compare native I. duplicatus population from Northern Europe and Asia to recently discovered ones. Individuals of I. duplicatus populations were collected from China, N-Poland, Russia, Sweden (autochthonous range) and Czech Republic, S-Poland, Slovakia (allochthonous range) respectively. The 400-700 long fragment of the mitochondrial DNA (COI gene) was screened. 1.1 % sequence divergence was counted between the populations from China and CentralEurope. While the Asian population showed high homogeneity the European ones a moderate diversity. Preferred format: Poster Suggested session: Technical Session: Alien pests threatening biodiversity in forest ecosystems
