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Near-isogenic lines of wheat carrying genes for stem rust resistance

By: Knott, D.R.
Material type: materialTypeLabelArticlePublisher: 1990ISSN: 0011-183X.Subject(s): Cell structure | Cereals | Chromosomes | Crops | Economic plants | Fungi | Glumiflorae | Grain crops | Gramineae | Monocotyledons | Nucleus | Plant diseases | Plant genetics and breeding | Plants | Resistance to injurious factors | Taxa | Taxonomy | Triticum | Wheat AGROVOC | Genetics AGROVOCDDC classification: 90-123585 In: Crop science (USA). (Jul-Aug 1990). v. 30(4) p. 901-905Summary: Near-isogenic lines (NILs) of wheat (Triticum aestivum L.) carrying single genes for resistance to stem rust (Puccinia graminis f. sp. tritici Eriks. and Henn.) are useful in genetical, plant pathological, and physiological studies. A stem rust susceptible, day-length insensitive genotype was developed for use as a recurrent parent in the production of NILs. Thirty-eight NILs were produced and tested with nine races of stem rust. Nineteen of the NILs carried numbered Sr (stem rust resistance) genes at identified loci, while 19 carried genes at loci whose relationship to the identified loci was not known. Of the latter group, seven genes appeared to be different from any of the numbered genes. The remaining 12 NILs either were shown to carry numbered genes or still were incompletely tested. Seven of the NILs were resistant to all nine stem rust races, and all but one carried a gene that had been transferred to wheat from a relativeCollection: AGRIS Collection
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Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

AGRIS Collection 90-123585 (Browse shelf) Available
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Near-isogenic lines (NILs) of wheat (Triticum aestivum L.) carrying single genes for resistance to stem rust (Puccinia graminis f. sp. tritici Eriks. and Henn.) are useful in genetical, plant pathological, and physiological studies. A stem rust susceptible, day-length insensitive genotype was developed for use as a recurrent parent in the production of NILs. Thirty-eight NILs were produced and tested with nine races of stem rust. Nineteen of the NILs carried numbered Sr (stem rust resistance) genes at identified loci, while 19 carried genes at loci whose relationship to the identified loci was not known. Of the latter group, seven genes appeared to be different from any of the numbered genes. The remaining 12 NILs either were shown to carry numbered genes or still were incompletely tested. Seven of the NILs were resistant to all nine stem rust races, and all but one carried a gene that had been transferred to wheat from a relative

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