Abstract
Leaf rust, caused by Puccinia triticina, is considered one of the most important diseases of wheat. In South Africa the genes Lr29, Lr34, Lr35 and Lr37 confer effective resistance to leaf rust, qualifying them for use in cultivar improvement. To study possible secondary effects of these genes, a collection of BC6 lines containing each of the genes singly, was evaluated for breadmaking quality. The recurrent parent Karee, and Thatcher NILs used as resistance donors in the primary crosses, as well as Thatcher, were included as checks. The presence of Lr29, Lr34, Lr35 and Lr37 caused a significant increase in flour protein and water absorption. For most of the other characteristics the NILs performed statistically similar to the recurrent parent. Some sib lines performed significantly better than others, emphasising the value of selecting for improved quality among backcross lines.
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References
AACC, 1995. Approved Methods of the American Association of Cereal Chemists Inc., St. Paul.
Bartos, P., 1993. Chromosome 1R of rye in wheat breedimg. Plant Breed Abst 63: 1203–1211.
Cox, T.S., R.K. Bequette, R.L. Bowden & R.G. Sears. 1997. Grain yield and breadmaking quality of wheat lines with the leaf rust resistance gene Lr41. Crop Sci 37: 154–161.
Dhaliwal, A.S., Mares, D.J. & Marshall, D.R., 1987. Effects of 1B/1R chromosome translocation on milling and quality characteristics of bread wheats. Cereal Chem 64: 72–76.
Drijepondt, S.C., Z.A. Pretorius, D. Van Lill & F.H.J. Rijkenberg, 1990. Effect of Lr34 resistance on leaf rust development, grain yield and baking quality in wheat. Plant Breed 105: 62–68.
Dyck, P.L. & O.M. Lukow, 1988. The genetic analysis of two interspecific sources of leaf rust resistance and their effect on the quality of common wheat. Can J Plant Sci 68: 633–639.
Hogenboom, N.G., 1993. Economic importance of breeding for resistance. In: T.W. Jacobs & J.E. Parlevliet (Eds.), Durability of Disease Resistance – Current Science and Technology, pp. 5–9 vol. 18. Kluwer Academic, Dordrecht.
Kloppers, F.J., Z.A. Pretorius & D. van Lill, 1995. Field evaluation of leaf rust severity, yield loss and quality characteristics in nearisogenic wheat lines with Lr29, Lr35 or Lr37. S Afr J Plant Soil 12: 55–58.
Knott, D.R., 1968. Agropyrons as a source of rust resistance in wheat breeding. In: K.W. Finlay & K.W. Sheperd (Eds.), Proc 3rd Int Wheat Genet Symp, Canberra pp. 204–212.
Knott, D.R., 1980. Mutation of a gene for yellow pigment linked to Lr19 in wheat. Can J Genet Cytol 22: 651–654.
Knott, D.R. & J. Dvorak, 1981. Agronomic and quality characteristics of wheat lines with leaf rust resistance derived from Triticum speltoides. Can J Genet Cytol 23: 475–480.
McIntosh, R.A., C.R. Wellings & R.F. Park, 1995. Wheat Rusts: An Atlas of Resistace Genes. Kluwer Academic Publishers, Dordrecht.
Ortelli, S., H. Winzeler, M. Winzeler, P.M. Fried & J. Nösberger. 1996. Leaf rust resistance gene Lr9 and winter wheat yield reduction: I. Yield and yield components. Crop Sci 36: 1590–1595.
Samborski, D.J., 1985. Wheat leaf rust. In: A.P. Roelfs & W.R. Bushell (Eds.), The Cereal Rusts, VoI II, pp. 35–39. Academic Press, Orlando.
Singh, R.P. & J. Huerta-Espino, 1997. Effect of leaf rust resistance gene Lr34 on grain yield and agronomic traits of spring wheat. Crop Sci 37: 390–395.
Singh, R.P., J. Huerta-Espino, S. Rajaram & J. Crossa, 1998. Agronomic effects from chromosome translocations 7DL.7Ag and 1BL.1RS in spring wheat. Crop Sci 38: 27–33.
The, T.T., B.D.H. Latter, R.A. McIntosh, F.W. Ellison, P.S. Brennan, J. Fisher, G.J. Hollamby, A.J. Rathjen & R.E. Wilson, 1988. Grain yields of near-isogenic lines with added genes for stem rust resistance. In: T.E. Miller & R.M.D. Koebner (Eds.), Proc Int Wheat Genet Symp, Cambridge pp. 901–906.
Zeller, F.J. & S.L.K. Hsam, 1983. Broadening the genetic variability of cultivated wheat by utilizing rye chromatin. In: S. Sakamoto (Ed.), Proc 6th Int Wheat Genet Symp, Kyoto, Japan, pp. 161–173.
Zeven, A.C. & J. Waninge, 1996a. The degree of similarity of backcross lines of Triticum aestivum cultivars Manitou and Neepawa with Aegilops speltoides accessions as donors. Euphytica 35: 677–685.
Zeven, A.C. & J. Waninge, 1996b. The degree of phenotypic resemblance of the near-isogenic lines of the wheat cultivar Thatcher with their recurrent parent. Euphytica 35: 665–676.
Zeven, A.C., D.R. Knott & R. Johnson, 1983. Investigation of linkage drag in near-isogenic lines of wheat by testing for seedling reaction to races of stem rust, leaf rust and yellow rust. Euphytica 32: 319–327.
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Labuschagne, M., Pretorius, Z. & Grobbelaar, B. The influence of leaf rust resistance genes Lr29, Lr34, Lr35 and Lr37 on breadmaking quality in wheat. Euphytica 124, 65–70 (2002). https://doi.org/10.1023/A:1015683216948
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DOI: https://doi.org/10.1023/A:1015683216948