Yu-Ru Chen’s research focuses on genetic improvement of the haploid inducers and understanding haplotype sharing of the critical inducer founder lines. Double haploid technology in maize has contributed significantly to the genetic gain of maize in 21 centuries. The haploid inducers play a vital role in the mass production procedure of DH lines in the field, producing plentiful seeds with haploid embryo economically. There are 2 major genes/QTL involved in the haploid induction that had been cloned and identified. However, the haploid induction ability might also be controlled by other major/minor QTL, which allows for breeding the cutting-edge haploid inducers in the future. Therefore, Yu-Ru is now evaluating the genomic prediction approaches for the efficient and effective selection of haploid inducers and analyzing the key genome regions to understand haplotype sharing among those key ancestors of haploid inducers at ISU.