Theoretical and Applied Genetics (2006) 112, 1098-1103

Z.F. Li, T.C. Zheng, Z.H. He, G.Q. Li, S.C. Xu, X.P. Li, G.Y. Yang, R.P. Singh and X.C. Xia (2006)
Molecular tagging of stripe rust resistance gene YrZH84 in Chinese wheat line Zhou 8425B
Theoretical and Applied Genetics 112 (6), 1098-1103
Abstract: Stripe rust, caused by Puccinia striiformis f. sp. tritici (PST), is one of the most damaging diseases in common wheat (Triticum aestivum L.). With the objective of identifying and tagging new genes for resistance to stripe rust, F₁, F₂ and F₃ populations from the cross Zhou 8425B/Chinese Spring were inoculated with Chinese PST isolate CYR32 in the greenhouse. A total of 790 SSR primers were used to test the parents and resistant and susceptible bulks. The resulting seven polymorphic markers on chromosome 7BL were used for genotyping F₂ and F₃ populations. Results indicated that Zhou 8425B carries a single dominant resistance gene, temporarily designated YrZH84, closely linked to SSR markers Xcfa2040-7B and Xbarc32-7B with genetic distances of 1.4 and 4.8 cM, respectively. In a seedling test with 25 PST isolates, the reaction patterns of YrZH84 were different from those of lines carrying Yr2 and Yr6. It was concluded that YrZH84 is probably a new stripe rust resistance gene.
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Link to article at publishers website
Database assignments for author(s): Xianchun Xia, Zhonghu He

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Puccinia striiformis	Wheat (Triticum)