Abstract
In a heterothallic line ofClosterium ehrenbergii, a zygote germinates to produce two gones (meiotic products) as a result of the survival of two non-sister nuclei after meiosis. The map distance of any gene from the centromere can be determined by a new type of tetrad analysis, “representative tetrad analysis”. A mating type gene was demonstrated to be 5.0 map units apart from the centromere under chemically and physiologically controlled conditions. Concurrently, some bisexual and non-sexual gones were observed (2.3% and 5.3%, respectively), for the first time. Several mechanisms for producing these bisexual and non-sexual gones are discussed.
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Contribution from the Laboratory of Genetics, Faculty of Agriculture, Kyoto University, No. 437.
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Hamada, J., Yoshizawa-Katoh, T. & Tsunewaki, K. Genetic study on mating type genes by a new type of tetrad analysis inClosterium ehrenbergii . Bot Mag Tokyo 95, 101–108 (1982). https://doi.org/10.1007/BF02488577
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DOI: https://doi.org/10.1007/BF02488577