An α-mating-type-specific mutation causing specific defect in sexual agglutinability in the yeastSaccharomyces cerevisiae

✍ Scribed by Katsunori Suzuki; Naohiko Yanagishima

• Publisher: Springer-Verlag
• Year: 1985
• Tongue: English
• Weight: 487 KB
• Volume: 9
• Category: Article
• ISSN: 0172-8083
• DOI: 10.1007/bf00420310

✦ Synopsis

We have identified a recessive a-mating-typespecific gene agal causing agglutinabflity defect without significant effects on other sexual activities, a cells carrying agal showed sexual agglutination with a cells but a cells carrying agal showed sexual agglutination with neither a cells nor a cells, a cells carrying agal produced a pheromone and responded to a pheromone just like wild a cells, a cells carrying agal showed a little decreased but significant mating ability when tested on solid media or membrane filter. The agal mutant is different from any a-specific ste mutants found so far in many sexual activities. The agal gene is recessive, and unlinked to the mating type locus. Biological significance of the a mating type agglutinability is discussed based on the results obtained with the mutant.