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  • 1
    Electronic Resource
    Electronic Resource
    Chromosomal mapping and gene disruption of the ADHIII gene in Aspergillus nidulans (1989)
    Springer
    Current genetics 15 (1989), S. 135-142 
    Details
    ISSN: 1432-0983
    Keywords: Aspergillus ; Mapping ; Disruption ; ADHIII ; alcC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary There are at least three alcohol dehydrogenases in Aspergillus nidulans. ADHIII has no obvious physiological function. We describe here the cloning of the ADHIII gene (alcC), its mapping on linkage group VII by “reverse genetics”, and the properties of multicopy transformants tested for their ability to grow on a range of alcohols (butan-1-ol being the best substrate tested for growth). We were unable to detect any obvious alteration in phenotype of a strain carrying a disrupted copy of the ADHIII gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00435460
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The evaluation of adult plant resistance to powdery mildew (Erysiphe graminis f.sp. avenae) in transgressive lines of oats (1991)
    Springer
    Euphytica 53 (1991), S. 143-149 
    Details
    ISSN: 1573-5060
    Keywords: Avena sativa ; oats ; Erysiphe graminis f.sp. avenae ; powdery mildew ; plant breeding ; adult plant resistance ; transgressive segregation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Previously identified segregant lines of oats with levels of adult plant resistance to powdery mildew (Erysiphe graminis f.sp. avenae) better than the resistant parent maintained this high level of resistance in field nurseries over two growing seasons. This enhancement was not expressed on inoculated detached leaves under laboratory conditions where no differences between the more resistant parent cv. Maldwyn and the most resistant segregants was detected. Reduced resistance was not detected in tests where leaf segments of the transgressive lines were inoculated with ‘trained’ isolates. Problems associated with selecting for adult plant resistance under both field and laboratory conditions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023795
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Transgressive segregation for enhanced level of adult plant resistance to mildew in the oat cross Mostyn x Maldwyn (1983)
    Springer
    Euphytica 32 (1983), S. 499-503 
    Details
    ISSN: 1573-5060
    Keywords: Avena sativa ; oat ; Erysiphe graminis f.sp. avenae ; powdery mildew ; adult plant resistance ; transgressive segregation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In the cross Mostyn x (Mostyn x Maldwyn), 87 F6 lines with relatively high levels of adult resistance resulting from selection in previous generations, were field tested for severity to mildew infection in 1980. Of the 74 lines which proved to be homozygous regarding the Mostyn gene (AA or aa), 16 (including three lacking the Mostyn major gene-aa) proved to have significantly lower percentage leaf area infected than the most resistant parent at growth stages ranging from late ‘boot’ to ‘early milk’ ripeness of the grain. Some lines showed 10–15% less mildew than the adult plant resistant parent Maldwyn. There was some evidence to suggest that the presence of the now ‘overcome’ and ineffective major gene in Mostyn may have enhanced the level of partial resistance in this cross even in the presence of the corresponding virulence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021461
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  • 4
    Electronic Resource
    Electronic Resource
    Partial resistance to Erysiphe graminis hordei in old European barley varieties (1985)
    Springer
    Euphytica 34 (1985), S. 499-507 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Erysiphe graminis hordei ; powdery mildew ; partial resistance ; non-hypersensitive resistance ; transgressive segregation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A collection of 133 genotypes consisting mainly of old European barleys and land varieties was assessed for level of partial resistance to barley mildew at the adult plant stage. Identification of any known resistance factors conferring hypersensitive reactions to the mildew races present at various frequencies in N.W. Europe was ensured through seedling tests with an appropriate AO mildew isolate. Thirty-nine varieties with relatively high levels of adult (partial) resistance and lacking known race-specific resistance genes were tested over a period of three years in field disease nurseries. At least thirteen varieties showed significantly less percentage leaf area infected than the control variety Proctor. These constitute a useful reserve of non-hypersensitive resistance, probably under the control of genes with mainly additive effects. In combination, these genes give enhanced levels of resistance, which could be of a more stable nature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022947
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    Paper (German National Licenses)
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