Fine Mapping of Shoot Fly Resistance and Stay-Green QTLS on Sorghum Chromosome SBI-10
2017
k n s usha kiranmayee
K N S Usha Kiranmayee, 'Fine Mapping of Shoot Fly Resistance and Stay-Green QTLS on Sorghum Chromosome SBI-10', 2017
显示更多 [+] 显示较少 [-]Sorghum (Sorghum bicolor (L.) Moench, 2n = 2x = 20) is the fifth mostimportant cereal crop globally, and is grown primarily in arid and semi-aridconditions. Major biotic and abiotic constraints hampering sorghum productioninclude shoot fly infestation during early stages of crop development (seedlingestablishment and early growth stages; but only present in the easternhemisphere) and terminal drought stress during post-flowering growth stages.These two stresses can devastate the crop. Hence developing sorghum varietieswith resistance for these two stresses is critical. In order to understand thegenetic basis of sensitivity to these two stresses and to genetically dissect hostplant resistance to shoot fly and tolerance to terminal drought stress, thefollowing objectives were proposed for the present study:? to develop an introgression-line cross-based fine-mapping population formorphological components of shoot fly resistance and for the stay-greenmechanism of terminal drought tolerance previously mapped to sorghumchromosome SBI-10L;? to fine-map the target traits by combining genotyping and phenotypingdatasets of a selected recombinant sub-set of the fine-mapping population;? to annotate functionally and characterize candidate genes identified in thetarget region; and? to identify recombinant progenies with pyramided traits of interest
显示更多 [+] 显示较少 [-]