GrainGenes Reference Report: GNM-38-332
Reference
GNM-38-332
Title
Genetic control and chromosomal location of Triticum timopheevii-derived resistance to septoria nodorum blotch in durum wheat
Journal
Genome
Year
1995
Volume
38
Pages
332-338
Author
Ma H Hughes G
Abstract
The genetic control of resistance, expressed as restricted lesion development in seedling plants, to septoria nodorum blotch of wheat was studied under controlled environmental conditions, using the parental, F1, F2, F3, BC1F1, and BC1F2 generations of crosses of Triticum timopheevii-derived resistant durum lines S3-6, S9-10, and S12-1 with the susceptible durum cv Sceptre The seedling resistance of these three resistant sources, derived from T timopheevii (PI 290518), was monogenically controlled. The chromosomal location of the resistance gene identified was determined by crossing the complete set of 'Langdon'-'Chinese Spring' D-genome disomic substitution lines with S12-1. Tests of the F1 and F2 generations of each cross indicated that only chromosome 3A was associated with resistance. Therefore, the resistance gene is considered to be located on chromosome 3A and has been designated temporarily as SnbTM.
Keyword
chromosome
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: GNM-38-332
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||