Increased virulence of Puccinia coronata f. sp.avenae populations through allele frequency changes at multiple putative Avr loci
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چکیده
منابع مشابه
Crown Rust Development and Selection for Virulence in Puccinia coronata f. sp. avenae in an Oat Multiline Cultivar
Oat crown rust, caused by Puccinia coronata f. sp. avenae, is considered to be the most serious disease of oat (Avena sativa L.) in North America (27). It is distributed worldwide but is most damaging where heavy nightly dews occur in conjunction with moderate to high temperatures during the growing season. Under ideal conditions, crown rust can result in complete crop failure. In the United St...
متن کاملQuantitative Trait Loci Associated with Seedling Resistance to Isolates of Puccinia coronata in Oat.
ABSTRACT In our previous report, quantitative trait loci (QTL) for field adult plant resistance to crown rust were identified in an oat population of 152 F(5:6) recombinant inbred lines from the cross of 'Ogle' (susceptible)/MAM17-5 (resistant). The objectives of the present study were to identify in the same population, the number, genomic location, and effect of QTL and digenic QTL epistasis ...
متن کاملNoteInduction of Avenanthramides in Oat Leayes Inoculated with Crown Rust Fungus , Puccinia coronata f . sp . avenae
significant role in the rejection of the pathogen,i'2) Avenalumins consist of 3 components; the chemical structure ef the major component, avenalumin t, has been established to be 2-[2-(4hydroxyphenyl)ethenyl]-6-4H-3,1-benzoxazin-4-onc (1), based on an MS analysis of its acetylated derivative and identification of the methanolysis products.3) However, chem{cal studies by Crombie and Mistry4) ha...
متن کاملPatterns of Virulence in Natural Populations of Puccinia coronata on Wild Oat in Israel and in Agricultural Populations on Cultivated Oat in the United States.
ABSTRACT Crown rust (Puccinia coronata) in indigenous populations of Avena sterilis has been cited as an example of stability of wild pathosystems that consist of natural mixtures of resistance and virulence. This study confirmed that virulence/avirulence polymorphisms in P. coronata on A. sterilis in Israel are highly diverse and that super races do not dominate. Isolates of P. coronata from I...
متن کاملApplication of Allele Specific Markers in Determining Alleles at VRN-1 Loci in Bread Wheat Genotypes
Wheat is the most important crop and is cultivated all over the world. Wheat has a wide range of adaptability to different climates. Vernalization genes are one of the important factors determining wheat adaptability. in wheat breeding program understanding the alleles at vernalization requirement gens are useful to introduce new cultivar for different climates. At the molecular level, the ...
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ژورنال
عنوان ژورنال: PLOS Genetics
سال: 2020
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1009291