Obtaining Striga resistance in sorghum by using strigolactones as potential target
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Pooja Bhatnagar - Mathur, Rajeev Gupta. (1/8/2019). Obtaining Striga resistance in sorghum by using strigolactones as potential target.
The root parasitic plant Striga hermonthica is a major threat for global food security, devastating cereal yields particularly in sub- Saharan Africa. Striga is an obligate parasite that entirely depends on a suitable host to survive and complete its lifecycle, and relies on host-derived signals, mainly strigolactones (SLs), for seed germination. The Striga resistant sorghum effort includes developing Striga anti-germination and post attachment resistance technologies for preventing Striga germination and subsequent attachment through use of systematic mutant populations and gene editing methodologies, Some of the genes responsible for resistance/susceptibility have been already identified in several cereal crops at the PIs laboratory in the Netherlands. ICRISAT is currently working on mutants for the strigolactone pathway. Several candidates already identified that may be the first ones (3-4) to get started. However, owing to large variability in Striga hermonthica ecotypes, there is urgent need to identify genes that are conserved across the genus in order to develop complete and robust resistance to Striga.
Bhatnagar - Mathur, Poojahttps://orcid.org/0000-0002-4150-8287