Molecular Marker-Assisted Selection of Waxy Maize Inducers
Double haploid breeding technology has been widely used in maize breeding.The haploid induction lines commonly used in waxy maize breeding are all flint maize,the F1 kernels are also flint maize after crossing with waxy maize,not favorable to the marker identification.In this study,waxy inducer lines were selected to improve the efficiency of waxy maize haploid breeding.By constructing F2∶3 population of inducer line × waxy maize inbred line,using molecular marker-assisted selection technique and"double induction"technique,the waxy inducer lines were quickly created.The results showed that"Jinuoyou15"(with an induction rate of 8.6%)had the best compre-hensive character among the 28 new waxy haploid induction lines,and could improve the efficiency of waxy maize haploid breeding.