Ultrathin-layer isoelectric focusing of seed proteins was used to test the genetic purity of pumpkin hybrid seeds. In the pH range of 5-8, one male marker band and two female marker bands were found in the male and female parental line, respectively. Based on the male marker band and female marker bands, the genetic purity of F1 seeds can easily be determined in the laboratory.
Prolamin; male marker band; female marker band
