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GrainGenes Gene Report: Yr2 (Triticum)

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Gene	Yr2 (Triticum)  [ Marker Report ]
Synonym	Other name U Zadoks JC (1961) Yellow rust on wheat. Studies on epidemiology and physiological specialization Journal of Pl. Ziekten 67:69-256.
Gene Class	Reaction to Puccinia striiformis Westend.
Reference	Singh H and Johnson R (1988) Genetics of resistance to yellow rust in Heines VII, Soissonais and Kalyansona. Proceedings of the 7th International Wheat Genetics Symposium 885-890. Lupton FCH and Macer RCF (1962) Inheritance of resistance to yellow rust (Puccinia glumarum Erikss. and Henn.) in seven varieties of wheat. Transactions of the British Mycological Society 45:21-45.
URL	Gene record in the Catalog of Gene Symbols for Wheat (Komugi)
Chromosome	7B Labrum KE (1980) The location of Yr2 and Yr6, genes conferring resistance to yellow rust. Proceedings of the 5th European and Mediterranean Cereal Rusts Conference, Bari, Italy 41-45.
Germplasm	Hexaploid stock Avocet Taylor AJ et al. (1981) Race-specific genetic factors for resistance to Puccinia striiformis in wheat cultivars from the Plant Breeding Institute. Cereal Rusts Bulletin 9:33-45. [ Show all 55 ]
Comment	Yr2 is recessive. Yr2 originally referred to a gene in Heines VII conferring resistance to European pathotypes. However, Heines VII possesses an additional resistance gene (968) which can be detected with a geographically wider range of pathogen isolates. Yr2 is present in Kalyansona (968) and a range of spring wheats distributed by CIMMYT. Hexaploid stocks: Wizard, Marksman and Galahad are heterogeneous. Avocet is a United Kingdom accession.
Wheat Gene Catalog Reference	968 Singh H and Johnson R (1988) Genetics of resistance to yellow rust in Heines VII, Soissonais and Kalyansona. Proceedings of the 7th International Wheat Genetics Symposium 885-890.
Info Source	McIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.
Data Curator	Hart, Gary E. 95.08.24

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