title: Molecular cloning of the a1 locus of Zea mays using the transposable elements En and Mu1.
abstract: The a1 locus of Zea mays has been cloned using transposable elements as gene tags. The strategy was to make genomic libraries from maize stocks with a1 mutations induced either by En(Spm) or by Robertson's Mutator-system. These libraries were then screened with either Spm-I8 and En1, for the En-containing mutant, or with Mu1 for the Mu-induced mutation. There are many En and Mu1 hybridizing sequences present in the maize genome, however, by a process of cross-screening of the positives from the two libraries and by molecular analysis of the En-positive clones it was possible to identify clones in both libraries carrying all or part of the a1 gene.
authors.affiliation: Max-Planck-Institut für Züchtungsforschung, 5000 Köln 30, FRG.
authors.forename: C
authors.initials: C
authors.lastname: O'Reilly
authors.forename: N S
authors.initials: NS
authors.lastname: Shepherd
authors.forename: A
authors.initials: A
authors.lastname: Pereira
authors.forename: Z
authors.initials: Z
authors.lastname: Schwarz-Sommer
authors.forename: I
authors.initials: I
authors.lastname: Bertram
authors.forename: D S
authors.initials: DS
authors.lastname: Robertson
authors.forename: P A
authors.initials: PA
authors.lastname: Peterson
authors.forename: H
authors.initials: H
authors.lastname: Saedler
mesh_terms: D000429:Alcohol Oxidoreductases / Q000235:genetics*; D002874:Chromosome Mapping / Q000379:methods; D003001:Cloning, Molecular / Q000379:methods*; D004251:DNA Transposable Elements / Q000235:genetics*; D015698:Genomic Library; D010940:Plant Proteins / Q000235:genetics*; D003313:Zea mays / Q000235:genetics*
chemical_list: D004251:DNA Transposable Elements; D010940:Plant Proteins; D000429:Alcohol Oxidoreductases; C091604:A1 protein, Zea mays