Constructs containing the upstream sequences of atTOC159 , atTOC132 , atTOC120 and atTOC90 genes. The p132PUI upstream sequence includes the promoter (−383 to −1), 5′ UTR (+1 to +74 and +428 to +444), and leader intron (+75 to +427) sequences of atTOC132 gene. The p120PUI upstream sequence has the promoter (−673 to −1), 5′ UTR (+1 to +23 and +198 to +223), and leader intron (+24 to +197) sequences of atTOC120 gene. The p90PUI upstream sequence has the promoter (−575 to −1), 5′ UTR (+1 to +56 and +563 to +570), and leader intron (+57 to +562) sequences of atTOC90 gene. The transcription start site of atTOC159 gene is undetermined, therefore the precise position of 5′ UTR and intron is unknown. The p132P, p120P and p90P constructs consist of the promoter and 5′ UTR sequences prior to the leader intron of atTOC132, atTOC120 and atTOC90, respectively. Open box, promoter sequence. Hatched box, 5′ UTR sequence. Bronzed box, GUS coding sequence. Bold underline between the boxes, intron sequence. +1, transcription start site.