International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 3
First page : (316) Last page : (328)
Article doi: http://dx.doi.org/10.18782/2320-7051.2880
Stem Rust of Wheat- A Basic Review
F. A. Sheikh1*, Z. A. Dar1, P. A. Sofi1, Ajaz A. Lone1 and Nazir Ahmad Shiekh2
1Division of Genetics and Plant Breeding, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir 190025 India
2Department of Botany, Barkatullah University of Bhopal. M. P., India
*Corresponding Author E-mail: fayaz127@gmail.com
Received: 21.04.2017 | Revised: 30.04.2017 | Accepted: 1.05.2017
ABSTRACT
Throughout the history, stem rust has been considered a major threat to the wheat production. The three rust diseases of wheat namely stem, leaf and stripe rust are the most important biotic constraints to wheat production. Stem rust or black rust of wheat caused by the fungus Puccinia graminis Pers. f. sp. tritici Eriks. & E. Henn, is often the most damaging of the three wheat rust diseases due to the potential for complete crop loss. The spread of stem rust race Ug99 and variants are threat to worldwide wheat production and efforts are being made to identify and incorporate resistance. A primary source of concern at present is that Ug99 (TTKSK and its variants TTKST and TTTSK) has overcome major sources of stem rust resistance genes eg Sr31, Sr38 and other important gene complexes which confer resistance to stem rust. At present, among the 58 catalogued resistant genes against stem rust, only less than half of them are effective to Ug9927 (McIntosh et al. 2014). There are a total of 26 stem rust resistant genes derived from common wheat, only three (Sr28, Sr29 and SrTmp) are resistant to Ug99, and the effects of these genes are moderate under heavy disease pressure. Among the catalogued genes conferring some level of resistance against Ug99, 32 genes were introduced into wheat from its wild relatives. Because of limited resistance in the wheat gene pool, the discovery of novel resistance in wild relatives and its transfer to wheat by chromosome engineering is an effective strategy of disease control.
Key words: Stem Rust, UG-99, Sr-24, QTL Mapping, Durable Resistance, Shuttle BreedingFull Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Sheikh, F.A., Dar, Z.A., Sofi, P.A., Lone, A.A. and Shiekh, N.A., Stem Rust of Wheat- A Basic Review, Int. J. Pure App. Biosci.5(3): 316-328 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2880
