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Hsam, S. L. K.; Peters, N.F.; Paderina, E. V.; Felsenstein, F. G.; Oppitz, K.; Zeller, F. J.

doi:10.1023/a:1003057505151

Cited by 48 publications

(37 citation statements)

References 14 publications

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“…In comparison to the previous year, virulence frequency against the Pm6 gene has increased by 10%, but was lower than in 2010. Similarly as in previous years, Table 1 The characteristics of the varieties of oats used in the experiment (Hsam et al 2014(Hsam et al , 1997 In 2013, powdery mildew on oats occurred in the central and eastern part of the country. Pathogen isolates were established from populations collected in Strzelce (Łódź Province) and Czesławice (Lublin Province).…”

Section: Resultsmentioning

confidence: 88%

“…These factors lead to the emergence of virulent pathotypes that systematically break the resistance conditioned by the resistance genes present in oats cultivars. Thus far, the oat breeding programs have used Pm1, Pm3 and Pm6 genes (Hsam et al 1997(Hsam et al , 1998Okoń 2012). However, resistance conditioned by these genes has already been broken by the existing races of the pathogen (Okoń 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Early and continued infection has most severe effects on tillering, inflorescence size and consequently seed number and size, whereas later infections, particularly on the upper leaves, affect grain filling (Clifford 2012). The losses caused by powdery mildew are significant, ranging from 5 to 10%, and even up to 30% in western Europe (Hsam et al 1997;Zhang et al 2005) The interaction of the host and powdery mildew is closely related to the 'gene-for-gene' hypothesis, which implies that the virulence gene (Avr) in the genome of the pathogen is directed against the resistance gene (R) in a plant (Flor 1971;Heath 2000). In oats, so far eight genes of resistance to powdery mildew have been identified and described (Hsam et al 2014;Jones and Jones 1979).…”

Section: Introductionmentioning

confidence: 99%

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Virulence structure of the Blumeria graminis DC.f. sp. avenae populations occurring in Poland across 2010–2013

Okoń

Ociepa

2017

Eur J Plant Pathol

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The aim of the present study was to determine the virulence structure of powdery mildew of oats (Blumeria graminis DC.f. sp. avena) in Poland in the years 2010-2013. For this purpose, powdery mildew isolates were collected from three experimental stations in Poland. To assess the virulence of the isolates, eight oat varieties with different responses to the pathogen were used. The results showed that a significant proportion of powdery mildew isolates found in Poland overcame the resistance genes of varieties Bruno (Pm6), Jumbo (Pm1) and Mostyn (Pm3). In contrast, lines Av1860 (Pm4), Am27 (Pm5) and Cc3678 (Pm2) were completely resistant to all pathogen isolates involved in the experiment. Changes constantly occurring in the powdery mildew population perfectly reflect diversity indexes, which were the smallest in the first year of observation, where in the following years these parameters were significantly higher. It is worth noting that the presence of powdery mildew is seasonal and local, which is reflected in the prevalence of the disease in a defined area of the country.

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Section: Resultsmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Virulence structure of the Blumeria graminis DC.f. sp. avenae populations occurring in Poland across 2010–2013

Okoń

Ociepa

2017

Eur J Plant Pathol

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“…Thus far, 10 major genes conditioning resistance to oat powdery mildew have been characterized. Among the described Pm genes, Pm1, Pm3 and Pm6 are common in commercial cultivars from Europe and North America (Hsam et al 1997(Hsam et al , 1998Okoń 2012;Okoń et al 2016a). However, the resistance conditioned by these genes has already been broken by existing races of the pathogen, and only Pm4 and Pm7 are still effective (Okoń 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Resistance to powdery mildew is not widespread in Avena sativa (Hsam et al 1997(Hsam et al , 1998Sánchez-Martín et al 2011;Okoń 2012). Control of powdery mildew can be achieved through fungicide application, crop rotation and use of resistant cultivars (Martinelli 2004).…”

Section: Introductionmentioning

confidence: 99%

Molecular identification and chromosomal localization of new powdery mildew resistance gene Pm11 in oat

et al. 2019

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The appropriate selection of various traits in valuable plants is very important for modern plant breeding. Effective resistance to fungal diseases, such as powdery mildew, is an example of such a trait in oats. Marker-assisted selection is an important tool that reduces the time and cost of selection. The aims of the present study were the identification of dominant DArTseq markers associated with a new resistance gene, annotated as Pm11 and derived from Avena sterilis genotype CN113536, and the subsequent conversion of these markers into a PCR-based assay. Among the obtained 30,620 silicoDArT markers, 202 markers were highly associated with resistance in the analysed population. Of these, 71 were selected for potential conversion: 42 specific to resistant and 29 to susceptible individuals. Finally, 40 silicoDArT markers were suitable for primer design. From this pool, five markers, 3 for resistant and 2 for susceptible plants, were selected for product amplification in the expected groups. The developed method, based on 2 selection markers, provides certain identification of resistant and susceptible homozygotes. Also, the use of these markers allowed the determination of heterozygotes in the analysed population. Selected silicoDArT markers were also used for chromosomal localization of new resistance genes. Five out of 71 segregating silicoDArT markers for the Pm11 gene were found on the available consensus genetic map of oat. Five markers were placed on linkage groups corresponding to Mrg12 on the Avena sativa consensus map.

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Oat Fungal Diseases and the Application of Molecular Marker Technology for Their Control

et al. 2014

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Cited by 48 publications

References 14 publications

Virulence structure of the Blumeria graminis DC.f. sp. avenae populations occurring in Poland across 2010–2013

Virulence structure of the Blumeria graminis DC.f. sp. avenae populations occurring in Poland across 2010–2013

Molecular identification and chromosomal localization of new powdery mildew resistance gene Pm11 in oat

Oat Fungal Diseases and the Application of Molecular Marker Technology for Their Control

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