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Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
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August 18, 2023
DOI:
1Department of Molecular Biosciences,The University of Texas at Austin, 2BEACON Center for the Study of Evolution in Action,Michigan State University, 3Department of Microbiology and Molecular Genetics,Michigan State University, 4Department of Integrative Biology,Michigan State University, 5Biological Sciences Program,Michigan State University
Summary
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This protocol describes how to maintain the Escherichia coli Long-Term Evolution Experiment (LTEE) by performing its daily transfers and periodic freeze-downs and how to conduct competition assays to measure fitness improvements in evolved bacteria. These procedures can serve as a template for researchers starting their own microbial evolution experiments.
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Barrick, J. E., Blount, Z. D., Lake, D. M., Dwenger, J. H., Chavarria-Palma, J. E., Izutsu, M., Wiser, M. J. Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli. J. Vis. Exp. (198), e65342, doi:10.3791/65342 (2023).
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