Fig. 4

ABA biosynthesis and signaling pathway and ABA level in WT and MaMADS2 repressed fruits. a. Heat map of the genes changed in PB between WT and the MaMADS2 repressed lines. Each gene is normalized to the expression level in WT at MG; b. ABA level in WT and #32 pulps; c. The average of MaMADS2 expression levels in WT after ABA treatment (**: p < 0.01 standard error is presented); d. The ABA biosynthesis and signaling pathway scheme. The genes’ expression significantly higher (red) or lower (blue) in #32 or #44 fruits in comparison to WT at PB. Yellow color indicates no change. Detailed description of genes is provided by [50, 51]; e. Effect of ethylene treatment on ABA content in banana slices; f. A suggested model for the interactions of ABA with MaMADS2 and ethylene: rectangular: transcript, oval: protein, X: interaction that was rejected based on our results