TAILIEUCHUNG - Báo cáo lâm nghiệp: "Genetic structure and phylogeography of pine shoot beetle populations (Tomicus destruens and T. piniperda, Coleoptera Scolytidae) in Italy"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Genetic structure and phylogeography of pine shoot beetle populations (Tomicus destruens and T. piniperda, Coleoptera Scolytidae) in Italy" | Ann. For. Sci. 62 2005 361-368 INRA EDP Sciences 2005 DOI forest 2005031 361 Original article Genetic structure and phylogeography of pine shoot beetle populations Tomicus destruens and T. piniperda Coleoptera Scolytidae in Italy Massimo Faccoli Alessia Piscedda Paola Salvato Mauro Simonato Luigi Masutti Andrea Battisti Department of Environmental Agronomy and Crop Productions - University of Padua Agripolis - Viale delTUniversità 16 a 35020 Legnaro PD Italy Received 4 May 2004 accepted 15 December 2004 Abstract - Tomicus are among the most dangerous pine pests. In this paper we assess the genetic structure of some Italian Tomicus populations and the possible sympatry of T. destruens and T. piniperda. A fragment 358 bp long of the mitochondrial DNA relative to the COI was investigated in eight populations by SSCP analyses and sequencing. In the sampled populations T. destruens and T. piniperda were not found to be sympatric. T. destruens populations of southern and central Italy strongly differ from a population of northern Italy. the phylogeographic analysis of T. destruens populations in Europe is geographically structured probably due to the fragmentation of the host pine ranges. The populations of T. piniperda are polymorphic with haplotypes occurring also in Europe and Asia. T. piniperda populations seem to be genetically unstructured because of both the continuous distribution area of its main host Pinus sylvestris and the international trade of pine timber. mtDNA SSCP Scolytidae pine phylogeography Résumé - Structure génétique et phylogéographie des populations de Tomicus destruens et T. piniperda Coleoptera Scolytidae en Italie. Le genre Tomicus figure parmi les espèces les plus dangereuses pour les forets de pins. La structure génétique de huit populations italiennes de T. destruens et T. piniperda a été étudiée ainsi que la sympatrie possible des deux espèces. Un fragment de 358 pb de l ADN mitochondrial relatif au COI a été amplifié séquencé et .

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