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GrainGenes Reference Report: CRS-43-333

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Reference	CRS-43-333
Title	Identification and validation of markers linked to broad-spectrum stem rust resistance gene Sr2 in wheat (Triticum aestivum L.)
Journal	Crop Science
Year	2003
Volume	43
Pages	333-336
Author	Spielmeyer W Sharp PJ Lagudah ES
Abstract	Summary: Stem rust resistance in wheat (Triticum aestivum L.) conferred by the Sr2 gene has remained effective against Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn. worldwide for more than 50 yr. Sr2 resistance is associated with variable levels of disease symptoms; it shows recessive inheritance and is expressed primarily during the adult-plant stage. A genetic and physical interval for the Sr2 gene was determined on the short arm of chromosome 3B of wheat. Flanking microsatellite markers were identified and one tightly linked marker (gwm533) was shown to be associated with presence of Sr2. This marker was validated in a wide range of germplasm and can now be implemented in marker-assisted breeding to facilitate selection for this durable, broad-spectrum but difficult to score rust resistance gene
Gene	Sr2 (Triticum)
Locus	Sr2
Keyword	[ Hide all but 1 of 24 ] breeding chromosome crop disease disease symptoms gene germplasm graminis group-3 inheritance microsatellite puccinia graminis resistance resistance gene rust rust resistance selection stem stem rust symptoms tritici triticum triticum aestivum validation

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