Identification of genomic regions for rust resistance in sorghum
- 143 Downloads
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