Molecular analysis of a second functional A1 gene (dihydroflavonol 4-reductase) in Zea mays.
Some genes involved in anthocyanin biosynthesis in Zea mays are duplicated and differentially expressed. From the analysis of the A1 gene (dihydroflavonol 4-reductase), which is involved in this pathway, no molecular evidence for gene duplication was known to date. Isolation and analysis of A1 homologous genomic clones revealed the presence of a second A1 gene in maize and also two copies of the gene in Teosinte guerrero. The duplicated genes are structurally very similar and, at least in maize, the second gene is expressed.
Max-Planck-Institut für Züchtungsforschung, Köln, Germany.
J
J
Bernhardt
K
K
Stich
Z
Z
Schwarz-Sommer
H
H
Saedler
U
U
Wienand
D000429:Alcohol Oxidoreductases / Q000096:biosynthesis* / Q000737:chemistry / Q000235:genetics*; D000595:Amino Acid Sequence; D001483:Base Sequence; D018744:DNA, Plant / Q000737:chemistry / Q000302:isolation & purification; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D007527:Isoenzymes / Q000096:biosynthesis / Q000235:genetics; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid; D003313:Zea mays / Q000201:enzymology* / Q000235:genetics
D018744:DNA, Plant; D007527:Isoenzymes; D000429:Alcohol Oxidoreductases; C056570:dihydroflavanol 4-reductase