GrainGenes Reference Report: PKB-7-1967
Reference
PKB-7-1967
Title
Determination of virulence genes frequencies in wheat stripe rust ( Puccinia striiformis f.sp. tritici ) populations during natural epidemics in the regions of Southern Aegean and Western Mediterranean in Turkey
Journal
Pakistan Journal of Biological Sciences
Year
2004
Volume
7
Pages
1967-1971
Author
Zeybek A Yigit F
Abstract
This study was carried out to investigate virulence gene frequency in wheat stripe rust ( Puccinia striiformis f.sp. tritici ) populations during natural epidemics in 9 fields located in the Southern Aegean and Western Mediterranean regions of Turkey. Stripe rust uredospores were collected from diseased plants of 15 wheat cultivars in 2000 and 2001. The virulence of pathogens was determined by seedling test. Virulence gene frequency on rust population varied depending on the type of genes. The genes which showed high virulence frequency were more stable. In both years, the virulence frequency of Yr1, Yr2, Yr3a, Yr9, Yr17, Sd and So genes ranged between 7.8 and 100% in all populations, while that of Yr6, Yr7, Yr8 and Yr10 genes was observed in all locations
Keyword
agriculture
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GrainGenes Reference Report: PKB-7-1967
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||