Journal: European Journal of Plant Pathology

Abbreviation

Eur. j. plant pathol.

Publisher

Springer

Journal Volumes

ISSN

0929-1873
1573-8469

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Publications 1 - 10 of 34
  • Electrophoretic karyotypes of Rhynchosporium commune, R. secalis and R. agropyri
    Item type: Journal Article
    von Felten, Andreas; Zaffarano, Pascal L.; McDonald, Bruce A. (2011)
    European Journal of Plant Pathology
  • Microsatellite based population structure of Plasmopara viticola at single vine scale
    Item type: Journal Article
    Matasci, Caterina L.; Jermini, Mauro; Gobbin, Davide; et al. (2010)
    European Journal of Plant Pathology
  • Genetic diversity of Venturia inaequalis across Europe
    Item type: Journal Article
    Tenzer, Isabel; Gessler, Cesare (1999)
    European Journal of Plant Pathology
  • Diversity in genetic structure and chemotype composition of Fusarium graminearum sensu stricto populations causing wheat head blight in individual fields in Germany
    Item type: Journal Article
    Talas, Firas; Parzies, Heiko K.; Miedaner, Thomas (2011)
    European Journal of Plant Pathology
    Fusarium head blight (FHB) is one of the most destructive diseases of wheat. Twelve small commercial wheat fields (size 1–3 hectares) were sampled in Germany for Fusarium populations at three spots per field with 10 heads each. PCR assays using generic primers confirmed 338 isolates as F.graminearum sensu stricto (s.s.) (64.9%) out of 521 Fusarium spp. that were further analyzed. Populations of F. graminearum s.s. in Germany contain three types of trichothecenes with a dominancy of 15-acetyldeoxynivalenol chemotype (92%) followed by 3-acetyldeoxynivalenol chemotype (6.8%) and a few isolates of nivalenol chemotype (1.2%). All these isolates were genotyped using 19 microsatellite loci. The 12 populations showed a high genetic diversity within the small scale sampling areas resulting in 300 different haplotypes. Genetic diversity within populations (71.2%) was considerably higher than among populations (28.8%) as shown by analysis of molecular variance. Gene flow (Nm) between populations ranged from 0.76–3.16. Composition of haplotypes of one population followed over 2 years changed considerably. No correlation between genetic and geographical distance was found. In conclusion, populations of F. graminearum s.s. in Germany display a tremendous genetic variation on a local scale with a restricted diversity among populations.
  • Genetic Structure of Mycosphaerella graminicola Populations from Iran, Argentina and Australia
    Item type: Journal Article
    Jürgens, Tim; Linde, Celeste C.; McDonald, Bruce A. (2006)
    European Journal of Plant Pathology
    Restriction fragment length polymorphism (RFLP) markers were used to assess the genetic structure of populations of Mycosphaerella graminicola collected from wheat fields. A total of 585 isolates representing 10 field populations were sampled from Iran, Argentina and Australia. The genetic structure of M. graminicola populations from Iran and Argentina is described for the first time. Results were compared to previously investigated populations from Israel, Uruguay and Australia. Populations from Iran exhibited high clonality and low gene diversity, suggesting an inoculation event. Populations from uninoculated fields in Argentina had gene and genotype diversities similar to previously described European and North American populations. Genotype diversity was high for populations from Australia and tests for multilocus associations were consistent with sexual recombination in these populations. Gene diversity was low and fixed alleles were found for several loci. These findings are consistent with a relatively small founding population for Australia. These 10 new populations were integrated into a genetic distance comparison with 13 global populations that were characterized earlier.
  • Selection for fungicide resistance throughout a growing season in populations of Plasmopara viticola
    Item type: Journal Article
    Matasci, Caterina L.; Gobbin, Davide; Schärer, Hans-Jakob; et al. (2008)
    European Journal of Plant Pathology
  • Evaluation of the Sss AgriStrip rapid diagnostic test for the detection of Spongospora subterranea on potato tubers
    Item type: Journal Article
    Bouchek-Mechiche, Karima; Montfort, Françoise; Merz, Ueli (2011)
    European Journal of Plant Pathology
  • Risk assessment of the occurrence of black aspergilli on grapes grown in an alpine region under a climate change scenario
    Item type: Journal Article
    Storari, Michelangelo; Broggini, Giovanni; Bigler, Laurent; et al. (2012)
    European Journal of Plant Pathology
  • Genetic structure of Iranian Pyricularia grisea populations based on rep-PCR fingerprinting
    Item type: Journal Article
    Javan-Nikkhah, Mohammad; McDonald, Bruce; Banke, Søren; et al. (2004)
    European Journal of Plant Pathology
    The population structure of the rice blast fungus Pyricularia grisea was analyzed in two major rice-growing provinces of Iran using rep-PCR DNA fingerprinting. A total of 221 monoconidial isolates of the fungus was collected from 12 cultivars at ten regions during 1997–2000. Long-PCR conditions were used to amplify sequences lying between adjacent Pot2 elements. The frequencies of Pot2 lineages (isolates with ≥70% amplicon similarity) and haplotypes within lineages were determined. Phenetic analysis differentiated five Pot2 fingerprint lineages, designated A, B, C, D and E. The most common fingerprint group, Lineage E, was recovered from all rice cultivars sampled and was distributed throughout the region. Haplotype E6, the most common haplotype within lineage E, was recovered from almost all regions. Lineage A, the second most common lineage, was found mainly in the western part of the sampled region. Haplotype A1 was found in most sites in the western province. Lineage A occurred at relatively high frequency on the susceptible local cultivar Binam, suggesting that lineage A is specifically adapted to Binam. To test this hypothesis, 193 additional isolates were recovered from four fields at two sites separated by approximately 100 km. This second, field-specific collection of isolates contained lineages A, C, D, and E. Approximately 64% and 29% of the isolates recovered from Binam (the shared cv. at two sites) grouped into lineages A and E, respectively. The other two susceptible cultivars at these sites were infected by lineage E at frequencies of 100% and 71%. Overall, these data indicated a low level of genetic diversity in the Iranian P. grisea population similar to that reported in other countries. © 2004 Kluwer Academic Publishers.
  • Intraspecific evolution of Rhizoctonia solani AG-1 IA associated with soybean and rice in Brazil based on polymorphisms at the ITS-5.8S rDNA operon
    Item type: Journal Article
    Ciampi, Maisa B.; Kuramae, Eiko E.; Fenille, Roseli C.; et al. (2005)
    European Journal of Plant Pathology
Publications 1 - 10 of 34