Once the DNA is integrated into the cells, those that have been confirmed as containing the gene of interest are selected for and propagated to generate a full plant that has the desired trait.

Transformed cells are then selected and regenerated into complete LMOs. The subsequent step is the further selection of the LM event(s) that contains the desired transgene(s) and expresses the desired characteristics. Through selection, many experimental LMOs are discarded and only a few events reach the stage of commercialization.

In the case of LM plants, cross-breeding to introduce the transgene(s) into other recipient varieties is also common.