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Rationally designed perturbation factor drives evolution in Saccharomyces cerevisiae for industrial application.

08:00 EDT 3rd August 2018 | BioPortfolio

Summary of "Rationally designed perturbation factor drives evolution in Saccharomyces cerevisiae for industrial application."

Saccharomyces cerevisiae strains with favorable characteristics are preferred for application in industries. However, the current ability to reprogram a yeast cell on the genome scale is limited due to the complexity of yeast ploids. In this study, a method named genome replication engineering-assisted continuous evolution (GREACE) was proved efficient in engineering S. cerevisiae with different ploids. Through iterative cycles of culture coupled with selection, GREACE could continuously improve the target traits of yeast by accumulating beneficial genetic modification in genome. The application of GREACE greatly improved the tolerance of yeast against acetic acid compared with their parent strain. This method could also be employed to improve yeast aroma profile and the phenotype could be stably inherited to the offspring. Therefore, GREACE method was efficient in S. cerevisiae engineering and it could be further used to evolve yeast with other specific characteristics.

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This article was published in the following journal.

Name: Journal of industrial microbiology & biotechnology
ISSN: 1476-5535
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