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Are the GB-speckles could be used to study the evolution of Listeria monocytogenes?

Valentina A. Feodorova, 1 Maria A. Khizhnyakova, 1 Sergey S. Zaitsev, 1 Onega V. Ulianova, 2 Alexander S. Ulyanov, 3 Sergey S. Ulyanov, 1,2 1 Federal Research Center for Virology and Microbiology, Branch in Saratov, Russia 2 Department of Medical Physics, Saratov State University, Saratov, Russia 3 Rocolabs, 27 West 24th Street Suite 704, New York, NY, 10010

Abstract

In this study, the GB-speckles were used to study the probable precursor for L. monocytogenes ST734 strains, which were detected twice in the world, namely: for the first time in Chile in 2009 and, recently, in 2019 in the Republic of Serbia. We found that these strains belong to the clonal complex I and differ from L. monocytogenes ST1 strains by a single nucleotide change in the gene dat. This is the first report demonstrating the using GB-speckle-structures to detect evolutionary genetic changes in L. monocytogenes strains.

Speaker

Maria Khizhnyakova
Federal Research Center for Virology and Microbiology, Branch in Saratov, Russia
Russia

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