Abstract:

In this study, cross combination was designed by selecting two sweet corn inbred (T14 and T4) different significantly in ear height. Using 330 F2 individuals as genetic mapping population, we carried out QTL screening in whole corn genome with the methods of multiple interval mapping (CIM). The result indicated that 7 QTL in chromosome 3, 4, 8, 9, 10 were screened correlating with ear height trait in F2:3 families, accounting for 3.2%-13.3% of phenotypic variance. The QTL of ear height from this study may improve the procedure of high yield, density and lodging resistance breeding and molecular marker-assisted selection (MAS).