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Molecular analysis of a second functional A1 gene ( dihydroflavonol 4‐reductase ) in Zea mays
Author(s) -
Bernhardt Jürgen,
Stich Karl,
SchwarzSommer Zsuzsanna,
Saedler Heinz,
Wienand Udo
Publication year - 1998
Publication title -
the plant journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.058
H-Index - 269
eISSN - 1365-313X
pISSN - 0960-7412
DOI - 10.1046/j.1365-313x.1998.00142.x
Subject(s) - gene , gene duplication , biology , genetics , zea mays , gene family , homologous chromosome , genome , agronomy
Summary 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.