Literature Results

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Discovery and characterization of two new stem rust resistance genes in Aegilops sharonensis

Stem rust is one of the most important diseases of wheat in the world. When single stem rust resistance (Sr) genes are deployed in wheat, they are often rapidly overcome by the pathogen. To this end, we initiated a search for novel sources of resistance in diverse wheat relatives and identified the wild goatgrass species ...

Guotai Yu, Nicolas Champouret, Burkhard Steuernagel, Pablo D. Olivera, Jamie Simmons, Cole Williams, Ryan Johnson, Matthew J. Moscou, Inmaculada Hernández-Pinzón, Phon Green, Hanan Sela, Eitan Millet, Jonathan D. G. Jones, Eric R. Ward, Brian J. Steffenson, Brande B. H. Wulff

Theoretical and Applied Genetics · Volume 130 · Issue 6 · 2017

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Discovery and characterization of two new stem rust resistance genes in Aegilops sharonensis

Stem rust is one of the most important diseases of wheat in the world. When single stem rust resistance (Sr) genes are deployed in wheat, they are often rapidly overcome by the pathogen. To this end, we initiated a search for novel sources of resistance in diverse wheat relatives and identified the wild goatgrass species ...

Guotai Yu, Nicolas Champouret, Burkhard Steuernagel, Pablo D. Olivera, Jamie Simmons, Cole Williams, Ryan Johnson, Matthew J. Moscou, Inmaculada Hernández-Pinzón, Phon Green, Hanan Sela, Eitan Millet, Jonathan D. G. Jones, Eric R. Ward, Brian J. Steffenson, Brande B. H. Wulff

Theoretical and Applied Genetics · Volume 130 · Issue 6 · 2017

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Microsatellite markers for the Triticum timopheevi-derived leaf rust resistance gene Lr18 on wheat 5BL chromosome

Leaf rust, caused by Puccinia triticina, is a common wheat disease worldwide. Developing resistant cultivars through deploying new or pyramiding resistance genes in a suitable line, is the most effective approach to control this disease. However, to stack genes in a genotype, efficient and reliable markers are required. In the present study, F2 plants and their corresponding...

Ali Aliakbari Sadeghabad, Ali Dadkhodaie, Bahram Heidari, Hooman Razi, Reza Mostowfizadeh-Ghalamfarsa

Breeding Science · Volume 67 · Issue 2 · 2017

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Vulnerability of Barley to African Pathotypes of Puccinia graminis f.sp.tritici and Sources of Resistance

The emergence of widely virulent pathotypes (e.g., TTKSK in the Ug99 race group) of the stem rust pathogen (Puccinia graminis f.sp. tritici) in Africa threatens wheat production on a global scale. Although intensive research efforts have been advanced to address this threat in wheat, few studies have been conducted on barley, even though pathotypes such as TTKSK are known to attack the crop....

B. J. Steffenson, A. J. Case, Z. A. Pretorius, V. Coetzee, F. J. Kloppers, H. Zhou, Y. Chai, R. Wanyera, G. Macharia, S. Bhavani, and S. Grando

Phytopathology · Volume 107 · Issue 8 · 2017

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Genetic analysis of resistance to stripe rust in some Iranian bread wheat cultivars and elite lines

Stripe rust is the most important disease of wheat in many wheat growing areas in Iran. Good knowledge of the genetic basis of resistance to stripe rust in commercial bread wheat cultivars and selected elite lines is an important objective in wheat breeding programs. This study aimed to identify resistance genes and modes of inheritance of stripe rust resistance in recently released Iranian...

A. Zakeri, F. Afshari, M. Yasaie, A. R. Nikzad, S. Rajaei

Crop Breeding Journal · 2017

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Molecular Mapping of Stem Rust Resistance Loci Effective Against the Ug99 Race Group of the Stem Rust Pathogen and Validation of a Single Nucleotide Polymorphism Marker Linked to Stem Rust Resistance Gene Sr28

Wheat landrace PI 177906 has seedling resistance to stem rust caused by Puccinia graminis f. sp. tritici races TTKSK, TTKST, and BCCBC and field resistance to the Ug99 race group. Parents, 140 recombinant inbred lines, and 138 double haploid (DH) lines were evaluated for seedling resistance to races TTKSK and BCCBC. Parents and the DH population were evaluated for field...

E. M. Babiker, T. C. Gordon, S. Chao, M. N. Rouse, R. Wanyera, M. Acevedo, G. Brown-Guedira, and J. M. Bonman

Phytopathology · Volume 107 · Issue 2 · 2017

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Comparative Analysis Highlights Variable Genome Content of Wheat Rusts and Divergence of the Mating Loci

Three members of the Puccinia genus, P. triticina (Pt), P. striiformis f.sp. tritici (Pst), and P. graminis f.sp. tritici (Pgt), cause the most common and often most significant foliar diseases of wheat. While similar in biology and life cycle, each species is uniquely adapted and specialized. The genomes of ...

Christina A. Cuomo, Guus Bakkeren, Hala Badr Khalil, Vinay Panwar, David Joly, Rob Linning, Sharadha Sakthikumar, Xiao Song, Xian Adiconis, Lin Fan, Jonathan M. Goldberg, Joshua Z. Levin, Sarah Young, Qiandong Zeng, Yehoshua Anikster, Myron Bruce, Meinan Wang, Chuntao Yin, Brent McCallum, Les J. Szabo, Scot Hulbert, Xiaming Chen, John P. Fellers

G3 · Volume 7 · Issue 2 · 2017

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Identification and validation of single nucleotide polymorphic markers linked to Ug99 stem rust resistance in spring wheat

Wheat stem rust (Puccinia graminis f. sp. tritici Eriks. and E. Henn.) is one of the most destructive diseases world-wide. Races belonging to Ug99 (or TTKSK) continue to cause crop losses in East Africa and threaten global wheat production. Developing and deploying wheat varieties with multiple race-specific genes or complex adult plant resistance is necessary to achieve...

Long-Xi Yu, Shiaoman Chao, Ravi P. Singh, Mark E. Sorrells

PLoS One · 2017

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Speed breeding for multiple disease resistance in barley

To respond faster to the changing climate, evolving pathogens and to feed a global population of 9–10 billion by 2050, plant breeders are exploring more efficient crop improvement strategies. In this study, we applied novel methodology for rapid trait introgression to the European two-rowed barley cultivar Scarlett. Scarlett is widely-grown in Argentina and is preferred for malting and brewing...

Lee T. Hickey, Silvia E. Germán, Silvia A. Pereyra, Juan E. Diaz, Laura A. Ziems, Ryan A. Fowler, Greg J. Platz, Jerome D. Franckowiak, Mark J. Dieters

Euphytica · Volume 213 · Issue 64 · 2017

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Mining Vavilov’s Treasure Chest of Wheat Diversity for Adult Plant Resistance to Puccinia triticina

Leaf rust (LR) caused by Puccinia triticina, is among the most important diseases of wheat (Triticum aestivum L.) crops globally. Deployment of cultivars incorporating genetic resistance, such as adult plant resistance (APR) or all-stage resistance, is considered the most sustainable control method. APR is preferred for durability because it places lower selection pressure on the...

Riaz, A.; Athiyannan, N.; Periyannan, S.; Afanasenko, O.; Mitrofanova, O.; Aitken, E. A. B.; Lagudah, E.; Hickey, L. T.

Plant Disease · Volume 101 · Issue 2 · 2017

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