Figure 1.

Plant production and analysis. A to D, Schematic representation of experimental workflow. Autotetraploid potato var Desiree was cultured axenically and either protoplasted and regenerated (A), propagated from nodal buds without callus formation or regeneration (B), or regenerated from stem explants after Agrobacterium transformation (C). Cumulative numbers or process efficiencies for two experiments are shown in A. Derivation of dosage plots (D) was used to detect copy number variation for chromosomes.