Sequence of the 5′ upstream region of the pea TRX f (A) and TRX m (B) genes, deleted promoter constructions of TRX f (C) and TRX m (D), and phylogenetic analysis (E). Nucleotides are numbered relative to the transcription start site indicated as +1 for the TRX m promoter and the ATG for TRX f. Putative cis-elements found in the database are indicated in boxes. Root-specific tissues are in white boxes, carbon metabolism-related elements are in shaded boxes, light-responsive elements are in dashed boxes, and elements related to seed development are underlined. C, Schema of the serial deletions of the promoter of the TRX f gene fused to the GUS reporter gene. D, Schema of the serial deletions of the promoter of the TRX m gene fused to the GUS reporter gene. E, ClustalX phylogenetic tree for chloroplastic TRX f and TRX m from pea (Ps) and Arabidopsis (At). Accession numbers are (in parentheses): PsTRXf (CAA45098), PsTRXm1 (CAA53900), PsTRXm2 (CAC69854), AtTRXf1 (NP_186922), AtTRXf2 (NP_197144), AtTRXm1 (NP_849585), AtTRXm2 (NP_192261), AtTRXm3 (NP_179159), and AtTRXm4 (NP_188155).