Population Structure of Mycosphaerella graminicola: From Lesions to Continents
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چکیده
منابع مشابه
Population Structure of Mycosphaerella graminicola: From Lesions to Continents.
ABSTRACT The genetic structure of field populations of Mycosphaerella graminicola was determined across a hierarchy of spatial scales using restriction fragment length polymorphism markers. The hierarchical gene diversity analysis included 1,098 isolates from seven field populations. Spatial scales ranged from millimeters to thousands of kilometers, including comparisons within and among lesion...
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aluminum pans 20 X 20 X 5 cm. No additional fertilizer was used. The soilMadariaga B., R., and Scharen, A. L. 1986. Interactions of Puccinia striiformis and andimixnwasfsufficientlys nutritious to Mycosphaerella graminicola on wheat. Plant Disease 70: 651-654. sand mix was sufficiently nutritious to support completely healthy-appearing Puccinia striiformis and Mycosphaerella graminicola are fre...
متن کاملAggressiveness of Mycosphaerella graminicola Isolates from Susceptible and Partially Resistant Wheat Cultivars.
ABSTRACT The selective effect of quantitative host resistance on pathogen aggressiveness is poorly understood. Because two previous experiments with a small number of bread wheat cultivars and isolates of Mycosphaerella graminicola had indicated that more susceptible hosts selected for more aggressive isolates, we conducted a larger experiment to test that hypothesis. In each of 2 years, six cu...
متن کاملDNA Fingerprint Probe from Mycosphaerella graminicola Identifies an Active Transposable Element.
ABSTRACT DNA fingerprinting has been used extensively to characterize populations of Mycosphaerella graminicola, the Septoria tritici blotch pathogen of wheat. The highly polymorphic DNA fingerprints of Mycosphaerella graminicola were assumed to reflect the action of transposable elements. However, there was no direct evidence to support that conclusion. To test the transposable element hypothe...
متن کاملIdentification and Molecular Mapping of a Gene in Wheat Conferring Resistance to Mycosphaerella graminicola.
ABSTRACT Septoria tritici leaf blotch (STB), caused by the ascomycete Mycosphaerella graminicola (anamorph Septoria tritici), is an economically important disease of wheat. Breeding for resistance to STB is the most effective means to control this disease and can be facilitated through the use of molecular markers. However, molecular markers linked to most genes for resistance to STB are not ye...
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ژورنال
عنوان ژورنال: Phytopathology®
سال: 2002
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto.2002.92.9.946