tailieunhanh - Advanced breeding strategies to mitigate the threat of black stem rust of wheat

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 . Sr31, Sr38 and other important gene complexes which confer resistance to stem rust. Deployment of cultivars with broad spectrum rust resistance is the only environmentally viable option to combat these diseases. Therefore, identification, mapping and deployment of effective resistance genes are critical components of global efforts to mitigate this threat. Identification and introgression of novel sources of resistance is a continuous process to combat the ever evolving pathogens. |

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