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- Pretorius, Zacharias A., et al. Show all 8 Authors
- Phytopathology 2019 v.109 no.1 pp. 133-144
- Puccinia graminis; altitude; genetic analysis; genetic markers; genetic relationships; meteorological data; microsatellite repeats; monitoring; phenotype; races; simulation models; stem rust; urediniospores; wheat; wind; Australia; Indian Ocean; South Africa
- ... The Australian wheat stem rust (Puccinia graminis f. sp. tritici) population was shaped by the introduction of four exotic incursions into the country. It was previously hypothesized that at least two of these (races 326-1,2,3,5,6 and 194-1,2,3,5,6 first detected in 1969) had an African origin and moved across the Indian Ocean to Australia on high-altitude winds. We provide strong supportive evide ...
- Pretorius, Zacharias A., et al. Show all 13 Authors
- Phytopathology 2015 v.105 no.7 pp. 872-884
- Puccinia graminis; Triticum aestivum; chemical control; disease outbreaks; evolution; food security; genes; germplasm; mature plants; monitoring; new variety; plant pathogenic fungi; quantitative trait loci; races; research and development; stem rust; virulence; wheat; Egypt; Ethiopia; Iran; Kenya; Uganda; Yemen
- ... Race Ug99 (TTKSK) of Puccinia graminis f. sp. tritici, detected in Uganda in 1998, has been recognized as a serious threat to food security because it possesses combined virulence to a large number of resistance genes found in current widely grown wheat (Triticum aestivum) varieties and germplasm, leading to its potential for rapid spread and evolution. Since its initial detection, variants of the ...