A, Nucleotide sequence of the 5′-upstream region of the Cv20ox gene. The putative TATA box is double-underlined and the translation start codon is in bold. Sequences consisting of 19 bp or more A/T are underlined. B, Plasmid map of pGA2118. The terminator region of the nopaline synthase gene (nosT) was placed after the GUS coding region. H, HindIII; Sp, SpeI; N, NotI; Bs, BstZI; Sa, SalI; Xb, XbaI; B, BamHI; Sm, SmaI; P, PstI; S, SacI; E, EcoRI; K, KpnI; X, XhoI; St, StuI.