The document discusses genotype imputation and the DNApod workflow. Genotype imputation predicts unobserved genotypes in study individuals using reference haplotypes. DNApod is a database of whole genome sequences for rice, maize and sorghum strains that can be used to find genome-wide DNA polymorphisms. A web service was constructed to allow genotype imputation using reference haplotypes through a Galaxy API, running on local PCs or supercomputers. Validation of imputation accuracy is a future plan.