Summary
Genes for resistance toPuccinia graminis tritici andPuccinia recondita tritici identified in four South African wheats were:Sr6,Sr8a,Sr9e, andLr13 in ‘W3762’;Sr5,Sr8a,Sr9b,Sr12,Sr24,Lr13, andLr24 in ‘W3760’;Sr2,Sr24,SrC,Lr13, andLr24 in ‘W3751’; andSr7a,Sr23,Sr36, andLr16 in ‘W3755’. GenesSr2,Sr9e, andSr24 also conferred adult plant resistance to the predominant pathotypes ofP. graminis tritici. GenesSr7a,Sr23, andSrC, when present alone, did not confer acceptable adult plant resistance, even though low seedling reactions were associated with them when tested with the same pathotypes. Genetic recombination betweenLr13 andSr9e was estimated at 12.5%±2.3%.
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References
Allard RW (1956) Formulas and tables to facilitate the calculation of recombination values in heridity. Hilgardia 24:235–277
Anderson RG (1961) The inheritance of leaf-rust resistance in seven varieties of common wheat. Can J Plant Sci 41:342–359
Hare RA, McIntosh RA (1979) Genetic and cytogenetic studies of durable adult-plant resistance in ‘Hope’ and related cultivars to wheat rusts. Z Pflanzenzuecht 83:350–367
Johnston CO, Levine MN (1955) Fifth revision of the international register of physiologic races ofPuccinia rubigo-vera (DC) Wint. f sp.tritici (Eriks) Carleton. Plant Dis Rep, ARS-USDA, Suppl. 233
McIntosh RA (1983) A catologue of gene symbols for wheat. In: Sakamoto S (ed) Proc 6th Int Wheat Genetics Symp, Kyoto, Japan, pp 1299–1309
McIntosh RA, Dyck PL, Green GJ (1974) Inheritance of reaction to stem rust and leaf rust in wheat cultivar Etoile de Choicy. Can J Genet Cytol 16:571–577
McIntosh RA, Dyck PL, Green GJ (1977) Inheritance of leaf rust and stem rust resistance in wheat cultivars Agent and Agatha. Aust J Agric Res 24:37–45
McIntosh RA, Luig NH, Milne DL, Cusick J (1983) Vulnerability of triticales to wheat stem rust. Can J Plant Pathol 5:61–69
Nyquist WE (1962) Differential fertilization in the inheritance of stem rust resistance in hybrids involving a common wheat strain derived fromTriticum timopheevi. Genetics 47:1109–1124
Singh RP, McIntosh RA (1986) Genetics of resistance toPuccinia graminis tritici andPuccinia recondita tritici in Kenya Plume wheat. Euphytica 35:245–256
Singh RP, McIntosh RA (1987) Genetics of resistance toPuccinia graminis tritici in ‘Chris’ and ‘W3746’ wheats. Theor Appl Genet 73:846–855
Stakman EC, Stewart DM, Loegering WQ (1962) Identification of physiologic races ofPuccinia graminis vartritici. USDA, ARS E617 (revised)
Watson IA (1981) Wheat and its rust parasites in Australia. In: Evans LT, Peacock WJ (eds) Wheat science — today and tomorrow. Cambridge University Press, Cambridge, pp 129–147
Watson IA, Luig NH (1961) Leaf rust on wheat in Australia: a systematic scheme for the classification of strains. Proc Linn Soc NSW 86:241–250
Watson IA, Luig NH (1963) The classification ofPuccinia graminis var.tritici in relation to breeding resistant varieties. Proc Linn Soc NSW 88:235–258
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Communicated by G. S. Khush
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Singh, R.P., McIntosh, R.A. Genetics of resistance toPuccinia graminis tritici andPuccinia recondite tritici in four South African wheats. Theoret. Appl. Genetics 79, 401–410 (1990). https://doi.org/10.1007/BF01186086
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DOI: https://doi.org/10.1007/BF01186086