Differential spatio-temporal expression of carotenoid cleavage dioxygenases regulates apocarotenoid fluxes during AM symbiosis

•SL production is promoted by the AM fungus at the early stages of the interaction.•AM symbiosis alters apocarotenoid fluxes along the plant–fungus interaction.•Strigolactone and C13/C14 derivatives production is spatially and temporally regulated.•This regulation occurs at the transcriptional level by changes in the CCD genes.•CCD7 is a key enzyme acting as a hub in the regulation of the AM symbiosis.