| Title: | Mating type loci of Sporisorium reilianum: novel pattern with three a and multiple b specificities |
| Author(s): | Schirawski J; Heinze B; Wagenknecht M; Kahmann R; |
| Address: | "Max-Planck-Institut fur Terrestrische Mikrobiologie, Karl-von-Frisch-Strasse, D-35043 Marburg, Germany" |
| DOI: | 10.1128/EC.4.8.1317-1327.2005 |
| ISSN/ISBN: | 1535-9778 (Print) 1535-9786 (Electronic) 1535-9786 (Linking) |
| Abstract: | "Sporisorium reilianum and Ustilago maydis are two closely related smut fungi, which both infect maize but differ fundamentally in their mode of plant invasion and site of symptom development. As a prelude to studying the molecular basis of these differences, we have characterized the mating type loci of S. reilianum. S. reilianum has two unlinked mating type loci, a and b. Genes in both loci and adjacent regions show a high degree of synteny to the corresponding genes of U. maydis. The b locus occurs in at least five alleles and encodes two subunits of a heterodimeric homeodomain transcription factor, while the a locus encodes a pheromone/receptor system. However, in contrast to that of U. maydis, the a locus of S. reilianum exists in three alleles containing two active pheromone genes each. The alleles of the a locus appear to have arisen through recent recombination events within the locus itself. This has created a situation where each pheromone is specific for recognition by only one mating partner" |
| Keywords: | "Amino Acid Sequence Cloning, Molecular Fungal Proteins/chemistry Genes, Fungal/*genetics Genetic Variation Hyphae/genetics Molecular Sequence Data Pheromones/genetics/physiology Phylogeny Receptors, Pheromone/genetics/physiology Sequence Homology, Amino A;" |
| Notes: | "MedlineSchirawski, Jan Heinze, Bernadette Wagenknecht, Martin Kahmann, Regine eng Comparative Study Research Support, Non-U.S. Gov't 2005/08/10 Eukaryot Cell. 2005 Aug; 4(8):1317-27. doi: 10.1128/EC.4.8.1317-1327.2005" |
