Fig. 7
The expression profiles of transcription-related genes during regeneration of cvs. ‘Jersey’ and ‘Mercada’ plants. a, b The relative expression level of plastid- (a) and nuclear- (b) localised genes related to transcription occurring in plastids, encoding: NEP (nuclear-encoded polymerase; RpoTp gene), sigma factor (Sig2), α (rpoA) and β (rpoB) subunits of PEP (plastid-encoded polymerase) and tRNA-E (tRNAGlu) involved in communication between nucleus and plastid. Graphs show mean values of n ≥ 3 with SEM for relative expression level normalised to 43dC of cv. ‘Jersey’. An asterisk presents a value significantly different between cultivars at a certain day of culture. A hash indicates a value significantly different from the preceding day of culture within cultivar (Tukey’s test, P < 0.05). dC – day of culture