International Journal of Chemical Studies
Vol. 6, Issue 2 (2018)
In-silico analysis of identified QTLs associated with sheath blight tolerance
Author(s): Ashok Kumar Koshariya, Anil S Kotasthane, Toshy Agrawal and Priyanka
Abstract: Rice sheath blight, caused by the fungal pathogen Rhizoctonia solani Kuhn [Sexual stage: Thanetophorus cucumber is (Frank) Donk] is one of the major production constraints in rice-growing countries of the world. Under conditions favoring disease, up to 50% of grain yield may be lost (Marchetti and Bollich 1991). Control may be achieved with fungicides (Groth 2008), but cost and the potential for development of pathogen resistance make plant genetic resistance preferable. Plants can be induced locally and systemically to become more resistant to diseases through various biotic or abiotic stresses. The best characterized signal pathway for systemically induced resistance is SAR (systemic acquired resistance) that is activated by localized infections with necrotizing pathogens. Breeding for sheath blight resistant rice plants has not been very successful mainly because of lack of resistant donors in the cultivated varieties of rice Bonmann et al. 1992). While no complete SB resistance (SBR) has been found in cultivated or wild rices (Pan et al. 1999), partial resistance is best known in indicarices, where a series of studies in japonica x indica crosses has revealed an assortment of quantitative-trait loci (QTLs) with indica-derived resistance alleles. If integrated properly in plant health management programs, they can prolong the useful life of the resistance genes presently used. Nevertheless the issue prompted us to investigate. In-silicoanalysis of QTLs associated with sheath blight tolerance, which were summarizing herein.
Pages: 1824-1833 | 282 Views 10 Downloads
How to cite this article:
Ashok Kumar Koshariya, Anil S Kotasthane, Toshy Agrawal, Priyanka. In-silico analysis of identified QTLs associated with sheath blight tolerance. Int J Chem Stud 2018;6(2):1824-1833.