Fig. 5.

Cybrid mitochondrial genome composition. Summary status of the cybrid mitochondrial genome with respect to its parental composition either (a) soon after protoplast fusion, at which point the single fusion cell probably possessed a mitochondrial network that contained the entirety of both parental mitochondrial genomes, or (b) as determined from the mtDNA sequence of the mature cybrid plant investigated in this study. In both parts, the cybrid genome comprises the sum of the orange Nicotiana tabacum (Nt)-derived, and blue, Hyoscyamus niger (Hn)-derived, sequences. The gray regions in (b) indicate the aggregate length of parental-shared or parental-unique regions that are absent from the genome of the cybrid plant.