title: High genotypic diversity found among population of Phytophthora infestans collected in Estonia.
abstract: Potato late blight, caused by the oomycete pathogen Phytophthora infestans, is one of the most important diseases of potato worldwide. This is the first study characterising Estonian P. infestans population using the SSR marker genotyping method. 70 P. infestans isolates collected during the growing season in 2004 from eight potato fields in three different regions of Estonia were characterised with nine polymorphic SSR markers. A1 and A2 mating type isolates were detected from every studied field indicating the high potential for sexual reproduction, which raises the genotypic diversity in P. infestans population. Results revealed highly diverse P. infestans population in Estonia resembling the Northern European populations. Most of the multilocus genotypes were detected only once among the collected isolates. Subpopulations collected from different geographical regions of Estonia showed no differentiation from each other but instead formed one highly diverse group.
authors.affiliation: Department of Plant Pathology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014, Tartu, Estonia. Electronic address: eve.runno-paurson@emu.ee.
authors.forename: Eve
authors.initials: E
authors.lastname: Runno-Paurson
authors.affiliation: Department of Plant Pathology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014, Tartu, Estonia.
authors.forename: Riinu
authors.initials: R
authors.lastname: Kiiker
authors.affiliation: Luke Natural Resources Institute Finland, Natural Resources and Bioproduction, Planta, FI-31600 Jokioinen, Finland.
authors.forename: Tiina
authors.initials: T
authors.lastname: Joutsjoki
authors.affiliation: Luke Natural Resources Institute Finland, Natural Resources and Bioproduction, Planta, FI-31600 Jokioinen, Finland.
authors.forename: Asko
authors.initials: A
authors.lastname: Hannukkala
mesh_terms: D004957:Estonia; D014644:Genetic Variation; D005838:Genotype; D060005:Genotyping Techniques; D055750:Phytophthora infestans / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D010935:Plant Diseases / Q000382:microbiology*; D012091:Repetitive Sequences, Nucleic Acid; D011198:Solanum tuberosum / Q000382:microbiology*
keywords: Population variation; Potato late blight; Simple-sequence repeat (SSR)