Ahmet Zeybek
Ministry of Agriculture, Directory of Rural Affairs of Dalaman, Mugla, Turkey
Fahri Yigit
University of Mugla, Fethiye AS.M.K. High School, Fethiye, Mugla, Turkey
ABSTRACT
This study was carried out to investigate virulence gene(s) frequency of wheat stripe rust (Puccinia striiformis f. sp. tritici) populations during natural epidemics, in nine different fields, located in the regions of Southern Aegean and Western Mediterranean. Stripe rust uredospores were collected from diseased plants in 2000 and 2001. Virulence of pathogens were determined by seedling test. The results showed that virulence gene frequency on rust population varies depending on the type of genes. The genes which have high virulence frequency were more stable. In both experimental years, it was established that the virulence frequency of Yr1, Yr2, Yr3a, Yr9, Yr17, Sd and So genes ranged between 7.8 and 100% in all populations while Yr6, Yr7, Yr8 and Yr10 genes were observed in all locations.
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How to cite this article
Ahmet Zeybek and Fahri Yigit, 2004. 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. Pakistan Journal of Biological Sciences, 7: 1967-1971.
DOI: 10.3923/pjbs.2004.1967.1971
URL: https://scialert.net/abstract/?doi=pjbs.2004.1967.1971
DOI: 10.3923/pjbs.2004.1967.1971
URL: https://scialert.net/abstract/?doi=pjbs.2004.1967.1971
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