Genetic diversity of Phytophthora ramorum in nursery trade and managed environment in Scotland
| Authors: | Alexandra Schlenzig, David Cook |
| Year: | 2013 |
| Type: | General Technical Report |
| Station: | Pacific Southwest Research Station |
| 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: 33-39 |
Abstract
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.