Three Subfamilies of Pheromone and Receptor Genes Generate Multiple B Mating Specificities in the Mushroom Coprinus cinereus
نویسندگان
چکیده
منابع مشابه
Three subfamilies of pheromone and receptor genes generate multiple B mating specificities in the mushroom Coprinus cinereus.
The B mating type locus of the basidiomycete Coprinus cinereus encodes a large family of lipopeptide pheromones and their seven transmembrane domain receptors. Here we show that the B42 locus, like the previously described B6 locus, derives its unique specificity from nine multiallelic genes that are organized into three subgroups each comprising a receptor and two pheromone genes. We show that...
متن کاملA large pheromone and receptor gene complex determines multiple B mating type specificities in Coprinus cinereus.
Pheromone signaling plays an essential role in the mating and sexual development of mushroom fungi. Multiallelic genes encoding the peptide pheromones and their cognate 7-transmembrane helix (7-TM) receptors are sequestered in the B mating type locus. Here we describe the isolation of the B6 mating type locus of Coprinus cinereus. DNA sequencing and transformation analysis identified nine genes...
متن کاملThe origin of multiple B mating specificities in Coprinus cinereus.
Mushrooms, such as Coprinus cinereus, possess large families of pheromones and G-protein-coupled receptors that are sequestered at the B mating-type locus and whose function is to confer vast numbers of different mating types. This ability results from complex patterns of cognate and noncognate pheromone/receptor pairings, which potentially offer a unique insight into the molecular interaction ...
متن کاملTwo classes of homeodomain proteins specify the multiple a mating types of the mushroom Coprinus cinereus.
The A mating type locus of the mushroom Coprinus cinereus regulates essential steps in sexual development. The locus is complex and contains several functionally redundant, multiallelic genes that encode putative transcription factors. Here, we compare four genes from an A locus designated A42. Overall, the DNA sequences are very different (approximately 50% homology), but two classes of genes ...
متن کاملSelf-compatible B mutants in coprinus with altered pheromone-receptor specificities.
A successful mating in the mushroom Coprinus cinereus brings together a compatible complement of pheromones and G-protein-coupled receptors encoded by multiallelic genes at the B mating-type locus. Rare B gene mutations lead to constitutive activation of B-regulated development without the need for mating. Here we characterize a mutation that arose in the B6 locus and show that it generates a m...
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ژورنال
عنوان ژورنال: Genetics
سال: 2000
ISSN: 1943-2631
DOI: 10.1093/genetics/154.3.1115