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GrainGenes Reference Report: TAG-120-25

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Reference	TAG-120-25
Title	Wheat stripe rust resistance genes Yr5 and Yr7 are allelic
Journal	Theoretical and Applied Genetics
Year	2009
Volume	120
Pages	25-29
Author	Zhang P McIntosh RA Hoxha S Dong C
Abstract	Stripe rust is one of the most destructive diseases of wheat. Breeding for resistance is the most eco- nomical and environmentally acceptable means to control stripe rust. Genetic studies on resistance sources are very important. Previous inheritance studies on Triticum aes- tivum subsp. spelta cv. album and wheat cultivar Lee showed that each possessed a single dominant gene for stripe rust resistance, i.e., Yr5 and Yr7, respectively. Both were located on the long arm of chromosome 2B, but due to the complexities caused by genetic background eVects there was no clear evidence on the allelism or linkage status of these genes. Our study, involving an intercross of Avocet S near-isogenic lines possessing the genes, provided clear evidence for allelism or extremely close linkage of Yr5 and Yr7 based on phenotypic and molecular studies.
External Databases	https://doi.org/10.1007/s00122-009-1156-5
Gene	Yr5 (Triticum) Yr7 (Triticum)
QTL	Yr5

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