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

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Abstract

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

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Authors and Affiliations

  1. Biological Institute, Faculty of Science, Nagoya University, 464, Chikusa-ku, Nagoya, Japan

    Katsunori Suzuki & Naohiko Yanagishima

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  1. Katsunori Suzuki
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  2. Naohiko Yanagishima
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Suzuki, K., Yanagishima, N. An α-mating-type-specific mutation causing specific defect in sexual agglutinability in the yeast Saccharomyces cerevisiae . Curr Genet 9, 185–189 (1985). https://doi.org/10.1007/BF00420310

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  • DOI: https://doi.org/10.1007/BF00420310

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