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Yellow Rust Epidemics Worldwide Were Caused by Pathogen Races from Divergent Genetic Lineages
The results emphasized the lack of predictability of emergence of new races with high epidemic potential, which stresses the need for additional investments in population biology and surveillance activities of pathogens on global food crops, and assessments of disease vulnerability of host varieties prior to their deployment at larger scales.
Detection of Wheat Stem Rust (Puccinia graminis f. sp. tritici) Race TTKSK (Ug99) in Iran.
The occurrence of race TTKSK in Iran, the susceptibility of Iranian wheat cultivars to this race, the presence of environmental conditions conducive to disease epidemics in different parts of the country, and the occurrence of the alternate host barberry in many of the mountainous areas of Iran, indicate a new and serious threat to wheat production in Iran and a potentiallyserious threat to neighboring countries.
The growing threat of stripe rust worldwide.
The historical impacts and current status of stripe rust epidemics are dealt with and the need for regional and global collaboration in mitigating the global impact of this disease is highlighted.
Molecular markers for tracking the origin and worldwide distribution of invasive strains of Puccinia striiformis
The SCAR markers developed in the present study provide a rapid, inexpensive, and efficient tool to track the distribution of P. striiformis invasive strains, and suggested East Africa as the most plausible origin of the two invasive strains.
Characterisation and mapping of gene Lr73 conferring seedling resistance to Puccinia triticina in common wheat
- R. Park, V. Mohler, K. Nazari, D. Singh
- Biology, MedicineTheoretical and Applied Genetics
- 13 August 2014
A gene conferring seedling resistance to Puccinia triticinawas mapped to chromosome 2BS in the wheat Morocco was shown to be distinct and was therefore designated Lr73, which is unlikely to be of value in resistance breeding but recognised to avoid its inadvertent selection in breeding programmes.
International surveillance of wheat rust pathogens: progress and challenges
The Global Cereal Rust Monitoring System is underpinned by an information platform that includes standardized protocols for methods and systems used in surveys, preliminary virulence testing, data, sample transmission and management at the field and national and global levels, and includes two web-based visualization tools.
First Report of the Ug99 Race Group of Wheat Stem Rust, Puccinia graminis f. sp. tritici, in Egypt in 2014
American stem rust differential lines following standard race-typing procedure and infection type (IT) criteria determining virulence and avirulence were used, thereby extending the geographical distribution of Ug99-related races in Egypt.
Comparison of Genomic Prediction Methods for Yellow, Stem, and Leaf Rust Resistance in Wheat Landraces from Afghanistan
The results are encouraging, confirming the feasibility of GP to be effectively applied in breeding programs for resistance to all three wheat rust diseases and there was a linear trend in the predictive ability and the size of the training population.
The global cereal rust monitoring system.