Abstract
The influence of two esterase loci, each possessing two alleles (Est1 s ,Est1 f andEst2 s ,Est2 f ), on the rate of reproduction in haploid yeasts (Saccharomyces cerevisiae) during the vegetative phase, as well as on the rate of meiosis and on the vitality of spores was investigated. Alleles of theEst1 locus had no apparent effect on the rate of vegetative reproduction. In contrast, genotypes with theEst2 f allele possessed a definite selective advantage. Whereas theEst2 locus had no demonstrable influence on meiosis,Est1 s /Est1 s homozygotes, in contrast to the other two genotypes, exhibited an increased rate of meiosis. A connection between spore lethality and those esterases in question could not be demonstrated.
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Strobel, R., Wöhrmann, K. Populationsgenetische Untersuchungen anSaccharomyces Cerevisiae. II. Der Einfluß von Esterase-Loci auf Genfrequenzverändernde Faktoren. Genetica 45, 509–518 (1975). https://doi.org/10.1007/BF01772873
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DOI: https://doi.org/10.1007/BF01772873