نتایج جستجو برای: yr6
تعداد نتایج: 25 فیلتر نتایج به سال:
Previously we extended the utility of mapping-by-sequencing by combining it with sequence capture and mapping sequence data to pseudo-chromosomes that were organized using wheat-Brachypodium synteny. This, with a bespoke haplotyping algorithm, enabled us to map the flowering time locus in the diploid wheat Triticum monococcum L. identifying a set of deleted genes (Gardiner et al., 2014). Here, ...
the stripe (yellow) rust in wheat is one of the most important plant diseases in iran. since 1993 several epidemics have occurred in iran causing the breakdown of widely util-ized sources of resistance in wheat cultivars. twenty-seven pathotypes were identified during 2003 and 2004 in greenhouse tests. pathotypes 6e6a+, 6e22a+, 6e130a+, 6e134a+, 6e142a+, 6e158a+, 134e130a+ and 134e142a+ were mo...
Puccinia striiformis f.sp. tritici (Pst) is the causal agent of stripe (yellow) rust on wheat. It seriously threatens wheat production worldwide. The obligate biotrophic fungus is highly capable of producing new virulent races that can overcome resistance. Studying the inheritance of Pst virulence using the classical genetic approach was not possible until the recent discovery of its sexual sta...
Puccinia striiformis f. sp. tritici (Pst) causes wheat stripe rust (also called yellow rust, Yr), one of the most important diseases worldwide. Characterization virulence in Pst populations is essential for developing cultivars with effective and durable resistance to control disease. A total 138 races, including 120 races that were not previously reported, identified from collections made Cana...
بیماری زنگ زرد از مهم ترین بیماری های گندم در کشور ایران می باشد که در سالهای شیوع می تواند خسارت قابل توجهی به محصول وارد آورد . استفاده از ارقام مقاوم بهترین روش کنترل این بیماری محسوب می شود. برای تهیه ارقام مقاوم شناخت از قارچ عامل بیماری و نژادهای آن ضروری می باشد. این بررسی به منظور شناسایی فاکتورهای بیماریزایی ( ژن های بیماریزایی) و تغییرات سالیانه آنها در یازده منطقه گندم خیز کشور، در ش...
The objective of this study was to assess diversity for stem rust and stripe resistance in an international wheat screening nursery under greenhouse conditions using pathotypes with known avirulence/ virulence profiles. A set 95 entries collected from material generated by staff the International Maize Wheat Improvement Centre (CIMMYT) tested against seven Australian Pgt five Pst through artifi...
La roya amarilla, causada por el hongo Puccinia striiformis W., sigue siendo una enfermedad importante del trigo en la región de El Bajío, Noroeste México y los Valles Altos centro México. Durante ciclo 2014 se observó epidemia amarilla México, donde tomaron muestras analizaron líneas diferenciales invernadero. Los resultados indicaron que las combinaciones virulencia Yr1, Yr2, Yr3, Yr6, Yr7, Y...
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a devastating disease of wheat in Turkey and worldwide. This pathogen can overcome known resistance genes negatively affect the production. The objectives this study were to determine virulence patterns stripe rust isolates collected from coastal areas (Aegean Mediterranean regions) Turkey, examine genetic diversity populations simp...
Yellow (stripe) rust, caused by Puccinia striiformis f. sp. tritici (Pst), is a major disease of common wheat worldwide. Disease epidemics in Russia have been frequent and destructive, mostly the North Caucasus. However, over last 5 years, significance Pst has markedly increased other Russian regions. Therefore, virulence diversity was investigated Triticum aestivum six geographically distant r...
به منظور شناسایی منابع مقاومت به زنگ زرد در ژرمپلاسم گندم بانک ژن گیاهی ملی ایران، تعداد 41 ژنوتیپ گندم نان با چهار نژاد زنگ زرد مورد ارزیابی قرار گرفتند. جدایههای عامل بیماری از مناطق گرگان، کرج، مشهد و ساری جمعآوری شده، در گلخانه بصورت تک جوش، خالصسازی، تکثیر و روی ارقام افتراقی تعیین نژاد شدند. ارزیابی ژنوتیپها در گلخانه، در مرحله گیاهچه در سه تکرار و برای هر پاتوتیپ بطور جداگانه انجام ...
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