Volume 13, Number 47 (4-2009)                   JWSS 2009, 13(47): 669-676 | Back to browse issues page

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Hosseinzadeh A, Bernousi I, Mardi M, Bihamta M, Omidi S, Yazdi Samadi B. Identification of SSR Markers Linked to QTL for Fusarium Head Blight Resistance in Wheat. JWSS. 2009; 13 (47) :669-676
URL: http://jstnar.iut.ac.ir/article-1-1085-en.html

Abstract:   (14155 Views)
Fusarium head blight (FHB) is one of the most destructive diseases of wheat causing significant reduction in grain yield and quality. Development of resistant varieties is an effective, economical and enviromentally safe way to control FHB disease. A major QTL (quantitative trait locus) for Fusarium head blight resistance, Qfhs.ndsu-3BS, derived from cv. Sumai 3, has been identified and verified by several research groups via molecular marker analysis. The resistant cv. Sumai 3 was crossed to susceptible cv. Falat, then three backcrosses were followed by one self-fertilization. Three simple sequence repeat (SSR) markers, Xgwm 389, Xgwm493, Xgwm533, were used for marker assisted selection (MAS) in BC1 and BC2 generations.The probability of linkage between markers and Qfhs.ndsu-3BS was calculated using a binomial probability function based on the assumption that a molecular marker at a specific distance from Qfhs.ndsu-3BS in the population would carry the donor-parent allel as a function of the distance between marker and QTL and the number of backcrosses/selfs used in deriving the population. Microsatelite locus Xgwm 493 was significantly associated with Qfhs.ndsu-3BS.
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Type of Study: Research | Subject: Ggeneral
Received: 2010/05/18

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