Genome-Wide Association Study on Resistance to Stalk Rot Diseases in Grain Sorghum.

ABSTRACT: Stalk rots are important biotic constraints to sorghum production worldwide. Several pathogens may be associated with the disease, but Macrophomina phaseolina and Fusarium thapsinum are recognized as the major causal organisms. The diseases become more aggressive when drought and high-temperature stress occur during grain filling. Progress in genetic improvement efforts has been slow due to lack of effective phenotyping protocol and the strong environmental effect on disease incidence and severity. Deployment of modern molecular tools is expected to accelerate efforts to develop resistant hybrids. This study was aimed at identifying genomic regions associated with resistance to both causal organisms. A sorghum diversity panel consisting of 300 genotypes assembled from different parts of th

SUBMITTER: Adeyanju A 

PROVIDER: S-EPMC4478546 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature