Abstract
The pinewood nematode Bursaphelenchus xylophilus is the causal agent of pine wilt disease. In order to trace the origin of its recently introduced Portuguese population, two PCR-based techniques, random amplified polymorphic DNA (RAPD) and inter-simple sequence repeats (ISSR), were used to determine genetic relationships among 30 B. xylophilus isolates from the USA, Canada, Japan, China, South Korea and Portugal. Fingerprints obtained with both methods detected a reduced genetic variation of introduced isolates as compared to native North American isolates. Cluster analyses of genetic distances between isolates were carried out and bootstrap dendrograms were constructed. The results indicated that founders of the Portuguese isolates most likely were translocated one or two times to Portugal from their colonized sites in East Asia, but not from their native habitats in North America.
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Metge, K., Burgermeister, W. (2008). Analysis of Bursaphelenchus xylophilus (Nematoda: Parasitaphelenchidae) Provenances Using ISSR and RAPD Fingerprints. In: Mota, M.M., Vieira, P. (eds) Pine Wilt Disease: A Worldwide Threat to Forest Ecosystems. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8455-3_15
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DOI: https://doi.org/10.1007/978-1-4020-8455-3_15
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