title: Characterization of an spm-controlled bronze-mutable allele in maize.
abstract: The association of a receptor (Rs) of the Spm system with a Bz-1 allele has created a two-element Spm-controlled bz-mutable allele (bz-m13) of maize (Zea mays L.). In the absence of Spm, one copy of bz-m13 (bz/bz/bz-m13 ) conditions full anthocyanin production in the aleurone layer of the seed. In the presence of this Spm, bz-m13 produces a unique, coarsely variegated seed phenotype and has a high rate (50-83%) of gametic change to stable bz' or Bz' derivatives. Even one copy of a Bz' derivative allele conditions full anthocyanin production in the aleurone, but the enzyme (UFGT) level of the progenitor Bz-1 allele is not restored in most Bz' derivatives.
authors.affiliation: Department of Genetics, University of Wisconsin, Madison, Wisconsin 53706.
authors.forename: O E
authors.initials: OE
authors.lastname: Nelson
authors.forename: A S
authors.initials: AS
authors.lastname: Klein