Fig. 5.

Differential expression of genes involved in sesquiterpenoid and triterpenoid/terpenoid biosynthesis coupled with hormone signal transduction pathway in ‘Red Delicious’ and its four generation mutants (‘Starking Red’, ‘Starkrimson’, ‘Campbell Redchief’ and ‘Vallee spur’), named G0 to G4. Heat maps depict the normalized gene expression values, which represent the means ± SD of three biological replicates. Expression values of five libraries are presented as FPKM normalized log₁₀-transformed counts