Among the BC3 plants, typical traits such as enlarged corms, bud balls, wrinkled rosette leaves, leaf folding, mono-cotyledon, and root-born seedlings were also observed, indicating that these traits are heritable rather than epigenetic or due to phenotypic plasticity. However, because the maternal progenitor B. oleracea var. alboglabra is a cytoplasmic male sterile line, their progeny cannot self, so the traits cannot be reproduced stably. After generations of backcrossing, the traits are gradually lost and the phenotype finally approaches that of the recurrent parent B. rapa L. var. purpurea. This study is to be repeated using a fertile system, and further stabilize and manifest the traits by selfing and sister crossing, which will provide stronger support for the hypothesis raised in this study.