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GrainGenes Reference Report: GNM-43-477

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Reference	GNM-43-477
Title	Identification of RFLP markers for resistance to wheat spindle streak mosaic bymovirus (WSSMV) disease
Journal	Genome
Year	2000
Volume	43
Pages	477-482
Author	Khan AA Bergstrom GC Nelson JC Sorrells ME
Abstract	Summary: Wheat spindle streak mosaic bymovirus (WSSMV) causes an economically important disease of winter wheat in Europe and North America. Artificial inoculation with this virus to identify resistant wheat genotypes is difficult. This study was conducted to identify restriction fragment length polymorphism (RFLP) markers associated with resistance to this disease. A population, consisting of 104 F5 recombinant inbred lines from a cross between hexaploid Triticum aestivum cultivars 'Geneva' (resistant) and 'Augusta' (susceptible), was evaluated for WSSMV symptoms under field conditions for four years. Two linked markers on the long arm of chromosome 2D, Xbcd1095 and Xcdo373, were determined to be associated with WSSMV resistance by bulked segregant analysis of the 10 most resistant and 10 most susceptible lines. Marker Xcdo373 accounted for 79% and Xbcd1095 for 73% of the phenotypic variation. Our results suggest that resistance to WSSMV in this population is qualitative in nature and is controlled by few genes. These markers should be useful in the development of wheat cultivars resistant to WSSMV and perhaps also to wheat yellow mosaic bymovirus (WYMV)
External Databases	PubMed: 10902711
Locus	Xcdo373-2D Xbcd1095-2D
Map Data	2DL, Augusta x Geneva
QTL	QWss.cnl-2D
Trait Study	Wheat spindle streak virus resistance, Khan00
Keyword	[ Hide all but 1 of 49 ] barley yellow mosaic virus bulked segregant analysis bymovirus canada chromosome chromosome 2d cross cultivar development disease disease resistance europe experimental infections field fragment length polymorphism gene genetic markers genotype hexaploid inbred lines inoculation length polymorphism linkage long arm marker north america phenotypic variation polymorphism population recombinant inbred lines registration resistance resistant rflp rflp marker rflp markers segregant analysis segregation susceptibility symptoms triticum triticum aestivum virus wheat cultivar wheat spindle streak mosaic virus wheat spindle streak mosaic virus (wssmv) wheat yellow mosaic virus winter winter wheat

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