Emergence of Virulence to Sr25 of Puccinia graminis f. sp. tritici on Wheat in India
نویسندگان
چکیده
منابع مشابه
Genetics of resistance to race TTKSK of Puccinia graminis f. sp. tritici in Triticum monococcum.
Race TTKSK (or Ug99) of Puccinia graminis f. sp. tritici possesses virulence to several stem rust resistance genes commonly present in wheat cultivars grown worldwide. New variants detected in the race TTKSK lineage further broadened the virulence spectrum. The identification of sources of genetic resistance to race TTKSK and its relatives is necessary to enable the development and deployment o...
متن کاملGenetic Mapping of Stem Rust Resistance to Puccinia graminis f. sp. tritici Race TRTTF in the Canadian Wheat Cultivar Harvest.
Stem rust, caused by Puccinia graminis f. sp. tritici, is a destructive disease of wheat that can be controlled by deploying effective stem rust resistance (Sr) genes. Highly virulent races of P. graminis f. sp. tritici in Africa have been detected and characterized. These include race TRTTF and the Ug99 group of races such as TTKSK. Several Canadian and U.S. spring wheat cultivars, including t...
متن کاملاولین گزارش از بیماری‌زائی زنگ ساقه گندم (Puccinia graminis f. sp. tritici) بر روی ژن Sr25 در اردبیل٬ شمالغرب ایران
زنگ ساقه یا سیاه گندم، با عامل Puccinia graminis Pers. f. sp. tritici Erikss. & Henning، یکی از مخربترین بیماریهای گندم در سراسر جهان به شمار میرود. این بیماری با به بکارگیری ژنهای مقاومت اختصاص- نژادی کنترل میشد، اما این نوع مقاومت پایدار نبوده و با ظهور نژادهای جدید عامل بیماری کارائی خود را از دست میداد (Jain et al. 2009). به عنوان مثال...
متن کاملChanging the Game: Using Integrative Genomics to Probe Virulence Mechanisms of the Stem Rust Pathogen Puccinia graminis f. sp. tritici
The recent resurgence of wheat stem rust caused by new virulent races of Puccinia graminis f. sp. tritici (Pgt) poses a threat to food security. These concerns have catalyzed an extensive global effort toward controlling this disease. Substantial research and breeding programs target the identification and introduction of new stem rust resistance (Sr) genes in cultivars for genetic protection a...
متن کاملMarkers Linked to Wheat Stem Rust Resistance Gene Sr11 Effective to Puccinia graminis f. sp. tritici Race TKTTF.
Wheat stem rust, caused by Puccinia graminis f. sp. tritici, can cause severe yield losses on susceptible wheat varieties and cultivars. Although stem rust can be controlled by the use of genetic resistance, population dynamics of P. graminis f. sp. tritici can frequently lead to defeat of wheat stem rust resistance genes. P. graminis f. sp. tritici race TKTTF caused a severe epidemic in Ethiop...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2009
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-93-8-0840b