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Title: Genotypic diversity of european Phytophthora ramorum isolates based on SSR analysis

Author: Van Poucke, Kris; Vercauteren, Annelies; Maes, Martine; Werres, Sabine; Heungens, Kurt;

Date: 2013

Source: In: Frankel, S.J.; Kliejunas, J.T.; Palmieri, K.M.; Alexander, J.M. tech. coords. Proceedings of the sudden oak death fifth science symposium. Gen. Tech. Rep. PSW-GTR-243. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: p. 40

Publication Series: General Technical Report (GTR)

   Note: This article is part of a larger document. View the larger document

Description:

in Scotland were genotyped using seven microsatellite markers as described by Vercauteren et al. (2010). Thirty multilocus genotypes were identified within the Scottish population, with 51 percent of the isolates belonging to the main European genotype EU1MG1 and 13 unique detected genotypes. Ten of those genotypes were site specific, often represented by single isolates. Three P. ramorum isolates, all from the same location, belonged to the new EU2 European lineage.

The number of genotypes found in the managed environment was higher than the number found in the horticultural trade (25 vs. 11), probably due to the fact that outbreaks in nurseries are usually detected earlier and are quickly eradicated. Evidence of locally-evolved genotypes was found in some outbreak sites.

Keywords: Sudden oak death, Phytophthora ramorum, invasive species, tanoak, Notholithocarpus densiflorus, coast live oak, Quercus agrifolia, Japanese larch, Larix kaempferi

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Citation:


Van Poucke, Kris; Vercauteren, Annelies; Maes, Martine; Werres, Sabine; Heungens, Kurt. 2013. Genotypic diversity of european Phytophthora ramorum isolates based on SSR analysis. In: Frankel, S.J.; Kliejunas, J.T.; Palmieri, K.M.; Alexander, J.M. tech. coords. Proceedings of the sudden oak death fifth science symposium. Gen. Tech. Rep. PSW-GTR-243. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: p. 40.

 


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