Molecular Polymorphism of Pectinase Genes PGU of Saccharomyces bayanus var. uvarum Yeast


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Abstract

A molecular genetic study of pectinase PGU genes from 74 strains of the yeast Saccharomyces bayanus var. uvarum isolated from various fermentation processes and natural sources in different regions of Europe and the United States has been performed. Unlike the S. cerevisiae yeasts, each having a single PGU gene, the S. bayanus var. uvarum strains have three divergent genes, PGU1b, PGU2b, and PGU3b, which are located respectively on chromosomes X, I, and XIV. The high pectinolytic activity of these yeasts appears to be related to the presence of several PGU polymeric genes in their genomes.

About the authors

E. S. Naumova

State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center
“Kurchatov Institute”, (NRC “Kurchatov Institute”–GosNIIgenetika)

Author for correspondence.
Email: lena_naumova@yahoo.com
Russian Federation, Moscow, 117545

M. Yu. Shalamitskiy

All-Russian National Research Institute of Viticulture and Winemaking “Magarach”, Russian Academy of Sciences

Email: lena_naumova@yahoo.com
Russian Federation, Yalta, 298600

G. I. Naumov

State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center
“Kurchatov Institute”, (NRC “Kurchatov Institute”–GosNIIgenetika)

Email: lena_naumova@yahoo.com
Russian Federation, Moscow, 117545

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