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Article

The a mating-type alleles of Ustilago maydis are idiomorphs.

Gene - 1 Apr 1991

Froeliger E H, Leong S A

Abstract excerpt

Two unlinked incompatibility loci, a and b, control mating, pathogenicity, and sexual development in Ustilago maydis, a fungal pathogen of corn. Fusion of nonpathogenic haploid cells occurs when alleles of the a locus differ; fusion products that differ at the b locus will be pathogenic and complete sexual development. The two alleles of the a locus have been cloned. The a2 allele was isolated by exploiting the...

Topics

Alleles
Cloning, Molecular
Crosses, Genetic
Diploidy
Genetic Complementation Test
Genotype
Membrane Fusion
Nucleic Acid Hybridization
Restriction Mapping
Transformation, Genetic
Ustilago

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Source

Identifiers

PMID: 2055462
DOI: 10.1016/0378-1119(91)90356-g

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-2055462-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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The a mating-type alleles of Ustilago maydis are idiomorphs.PMID 2055462Read ↗

The b mating-type locus of Ustilago maydis contains variable and constant regions.Semantic proximity Read ↗

The a mating type locus of U. maydis specifies cell signaling components.Semantic proximity Read ↗

Heterozygosity at the b mating-type locus attenuates fusion in Ustilago maydis.Semantic proximity Read ↗

The b alleles of U. maydis, whose combinations program pathogenic development, code for polypeptides containing a homeodomain-related motif.Semantic proximity Read ↗

Conservation of the b mating-type gene complex among bipolar and tetrapolar smut fungi.Semantic proximity Read ↗

The biallelic a mating type locus of Ustilago maydis: remnants of an additional pheromone gene indicate evolution from a multiallelic ancestor.Semantic proximity Read ↗

Linkage of mating-type loci distinguishes bipolar from tetrapolar mating in basidiomycetous smut fungi.Semantic proximity Read ↗

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Dual sets of chimeric alleles identify specificity sequences for the bE and bW mating and pathogenicity genes of Ustilago maydis.Semantic proximity Read ↗

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