Browsing by Subject "Invasive Art"

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    European population genomic differentiation and dispersal pattern of the invasive beetle Anoplophora glabripennis
    (2023) Häussermann, Iris Hanna; Hasselmann, Martin
    Anthropogenic activities (e.g. homogenized habitats, trade) are the main factors to facilitate the increasing rates of invasive alien species. In this study, the invasion of the Asian long-horned beetle (Anoplophora glabripennis) was examined. Its native distribution is eastern Asia (China, Korean peninsula), but by extensive trade, this beetle was introduced via wood packing materials to North-America (1996) and Europe (2001). ALB attacks healthy broadleaved trees (e.g. Acer spp., Salix spp., Populus spp.), which can become lethal due to larval feeding. This study aims to detect genetic differences and kinship between the European infestation sites in Germany, Switzerland and Italy, from which the introduction and dispersal patterns can be deviated. Therefore, mitochondrial (mt) DNA-markers of the Cytochrome oxidase subunits I and II genes (COI and II) were used (ch. A and B, Sanger sequencing), as well as genome wide single nucleotide polymorphisms (SNPs), which were obtained by a Genotype-by-sequencing (GBS) approach (ch. C, Illumina sequencing). The results of this population genomic study of invasive European ALB populations showed very complex introduction patterns into Europe including multiple independent introductions characterized by the high population structure between the European infestation sites and some cases of human mediated secondary dispersal.