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Article

Characterization of the molecular defect in a null allele of the opaque-2 locus of maize.

Plant molecular biology - 1 Dec 1996

Hoschek G, Russell K A, Schmidt R J

Abstract excerpt

The molecular defect in an opaque-2 (o2) mutant, previously characterized as a null allele, has been identified as containing an insertion of the transposable element of the Bergamo (Bg) family. Restriction mapping and partial sequence analysis of the Bg in the o2 null allele indicates that this element is distinct from the previously described Bg as well as the defective Bg (rbg) of the o2m(r) allele. It is,...

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Source

Identifiers

PMID: 9002615
DOI: 10.1007/BF00041400

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Characterization of the molecular defect in a null allele of the opaque-2 locus of maize.PMID 9002615Read ↗

Insertion mutations at the maize Opaque2 locus induced by transposable element families Ac, En/Spm and Bg.Semantic proximity Read ↗

Transposable element rbg induces the differential expression of opaque-2 mutant gene in two maize o2 NILs derived from the same inbred line.Semantic proximity Read ↗

Molecular analysis of the Bg-rbg transposable element system of Zea mays L.Semantic proximity Read ↗

Molecular analysis of wild-type and mutant alleles at the Opaque-2 regulatory locus of maize reveals different mutations and types of O2 products.Semantic proximity Read ↗

A 168 bp derivative of Suppressor-mutator/Enhancer is responsible for the maize o2-23 mutation.Semantic proximity Read ↗

Molecular analysis of opaque-2 alleles from Zea mays L. reveals the nature of mutational events and the presence of a hypervariable region in the 5' part of the gene.Semantic proximity Read ↗

An arginine to lysine substitution in the bZIP domain of an opaque-2 mutant in maize abolishes specific DNA binding.Semantic proximity Read ↗

Opaque-2 is a transcriptional activator that recognizes a specific target site in 22-kD zein genes.Semantic proximity Read ↗

Kernel lysine content does not increase in some maize opaque2 mutants.Semantic proximity Read ↗

An unstable allele at the maize Opaque2 locus is caused by the insertion of a double Ac element.Semantic proximity Read ↗

opaque2 modifiers act post-transcriptionally and in a polar manner on gamma-zein gene expression in maize endosperm.Semantic proximity Read ↗

[The frequency of reversion of the opaque2 locus mutable alleles controlled by the Bg-rbg system of mobile elements in maize].Semantic proximity Read ↗

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