title: Cloning and sequence analysis of the eburicol 14alpha-demethylase gene of the obligate biotrophic grape powdery mildew fungus.
abstract: In order to obtain molecular data concerning field resistance of Uncinula necator, the causal agent of grape powdery mildew, to sterol demethylation inhibitors, a major group of fungicides, the gene encoding the target of these compounds (eburicol 14alpha-demethylase) was cloned and sequenced from this obligately biotrophic phytopathogenic fungus. This single-copy gene encodes a 524 amino acid protein which displays high similarity to other known sterol 14alpha-demethylases (CYP51s). The coding sequence is interrupted by two short introns at positions identical to introns in Penicillium italicum CYP51, which is the only other known CYP51 gene in which introns have been identified. Intron excision was verified by cDNA sequencing.
authors.affiliation: Unité de Recherches Intégrées sur la Vigne, Institut National de la Recherche Agronomique, Centre de Recherches de Bordeaux, Domaine de la Grande Ferrade, Villenave d'Ornon, France. delye@bordeaux.inra.fr
authors.forename: C
authors.initials: C
authors.lastname: Délye
authors.forename: F
authors.initials: F
authors.lastname: Laigret
authors.forename: M F
authors.initials: MF
authors.lastname: Corio-Costet
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D017124:Conserved Sequence; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D005638:Fruit / Q000382:microbiology*; D005658:Fungi / Q000235:genetics*; D008969:Molecular Sequence Data; D010088:Oxidoreductases / Q000235:genetics*; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D058886:Sterol 14-Demethylase; D014158:Transcription, Genetic
chemical_list: D003577:Cytochrome P-450 Enzyme System; D010088:Oxidoreductases; D058886:Sterol 14-Demethylase