Identification of quantitative trait loci associated with sorghum susceptibility to Asian stem borer damage

Sorghum (Sorghum bicolor (L.) Moench) is an important crop originated in Africa that shows susceptibility to herbivores. In this study, we identified two sorghum genotypes with highly contrasting levels of stem damage caused by the caterpillars Asian borer (Ostrinia furnacalis Guenée). Recombinant inbred lines (RILs) from genetic cross between resistant (BTx623) and susceptible (NOG) were used perform a quantitative trait locus (QTL) analysis field. Two major QTLs responsible for higher NOG infestation three independent field seasons detected on chromosomes 7 9, interestingly positions overlapped plant height. As height correlated, propose height-associated morphological or physiological traits could be establishment and/or sorghum.