A VARIETY of freely segregating genes which specifically control the abilities of yeast to ferment α-glucosides has been discovered1,2. The three non-allelic genes determining the abilities of the haploid yeasts of the Carbondale breeding stock to grow with attendant visible gas evolution on maltose, α-methyl glucoside and sucrose, respectively, have been designated MA/ma, MG/mg and SU/su. It has been shown that these genes are concerned in the synthesis by the cell of maltase, an α-heteroglucosidase3 and β-fructofuranosidase, respectively.
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HESTRIN, S., LINDEGREN, C. Gene Function in the Homologous and Heterologous Induction of α-Glucosidases in Yeast by α-Glucosides. Nature 168, 913 (1951). https://doi.org/10.1038/168913a0
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