Identification of genomic regions for rust resistance in sorghum
The location and effects of genomic regions for rust resistance in sorghum were determined. One hundred and sixty recombinant inbreds, which derived from a cross between QL39 and QL41, were used as a segregating population for genome mapping and rust resistance evaluation. Phenotypic data were collected in replicated field trials in two years. Interval mapping and non-parametric mapping identified four regions, each in a separate linkage group, associated with rust resistance. The region with the largest effect on rust resistance is on linkage group 10; it accounted for 40% of the total phenotypic variation.
Unable to display preview. Download preview PDF.
- Chittenden, L.M., K.F. Schertz, Y.R. Lin, R.A. Wing & A.H. Paterson, 1994. A detailed RFLP map of Sorghum bicolor× S. propinquum, suitable for high-density mapping, suggests ancestral duplication of Sorghumchromosomes or chromosomal segments. Theor Appl Genet 87: 925-933.Google Scholar
- Frederiksen, R.A., 1986. Compendium of sorghum disease. St. Paul MN. USA. American Phytopathological Society. pp 23.Google Scholar
- Henzell, R.G., 1992. Grain sorghum breeding in Australia: current status and future prospects. In: M.A. Foale, R.G. Henzell & P.N. Vance (Eds) Proc 2nd Australian Sorghum Conf, Gatton, 4-6 February, 1992. pp. 70-82. Australian Institute of Agricultural Science, Melbourne, Occasional Publication No 68.Google Scholar
- Henzell, R.G., B.A. Franzmann & R.L. Brengman, 1994. Sorghum midge resistance research in Australia. Internatl Sorghum Millets Newslett 35: 41-47.Google Scholar
- Hooker, A.L., 1985. Corn and sorghum rust. In: A.P. Roelfs & W.R. Bushnell, (Eds), The cereals rusts. Vol. 2. Disease distribution, epidemiology and control. pp. 207-236. Academic Press, New York.Google Scholar
- Paterson, A.H., 1994. Status of genome mapping in sorghum, and prospects for marker-assisted selection in sorghum improvement. Internatl Sorghum Millets Newslet 35: 89-91.Google Scholar
- Patil-Kulkarni, B.G., A. Puttarudrappa, N.B. Kajjari & J.V. Goud, 1972. Breeding for rust resistance in sorghum. Indian Phytopathol 25: 166-168.Google Scholar
- Pereria, M.G., & M. Lee, 1995. Identification of genomic regions affecting plant height in sorghum and maize. Theor Appl Genet 90: 380-388.Google Scholar
- Rana, B.S., D.P. Tripathi & N.G. Rao, 1976. Genetic analysis of some exotic x Indian crosses in sorghum. XV. Inheritance of resistance to sorghum rust. Indian J Genet Plant Breed. 36: 244-249.Google Scholar
- Tao, Y.Z., D.R. Jordan, R.G. Henzell & C.L. McIntyre, 1997. Application of genome mapping in Australian sorghum breeding. In: Dajue Li (Ed) Proc 1st interntl sweet sorghum conf, Beijing, 14-19 Sep. pp 563-572.Google Scholar
- Van Ooijen, J.M. & C. Maliepaard, 1996. MapQTL (tm) version 3.0 softwear for the calculation of QTL positions on genetic maps. CPRO-DLO, Wageningen.Google Scholar
- Van Ooijen, J.W., 1992. Accuracy of mapping quantitative trait loci in autogramous species. Theor. Appl. Genet. 84: 803-811.Google Scholar