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  Sustained coevolution of phage Lambda and Escherichia coli involves inner- as well as outer- membrane defences and counter- defences

Burmeister, A. R., Sullivan, R. M., Gallie, J., & Lenski, R. E. (2021). Sustained coevolution of phage Lambda and Escherichia coli involves inner- as well as outer- membrane defences and counter- defences. Microbiology, 167(5): 001063. doi:10.1099/mic.0.001063.

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 Creators:
Burmeister, Alita R., Author
Sullivan, Rachel M., Author
Gallie, Jenna1, Author              
Lenski, Richard E., Author
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1Research Group Microbial Evolutionary Dynamics, Department Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_2253646              

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 Abstract: Bacteria often evolve resistance to phage through the loss or modification of cell surface receptors. In Escherichia coli and phage λ, such resistance can catalyze a coevolutionary arms race focused on host and phage structures that interact at the outer membrane. Here, we analyse another facet of this arms race involving interactions at the inner membrane, whereby E. coli evolves mutations in mannose permease- encoding genes manY and manZ that impair λ’s ability to eject its DNA into the cytoplasm. We show that these man mutants arose concurrently with the arms race at the outer membrane. We tested the hypothesis that λ evolved an additional counter- defence that allowed them to infect bacteria with deleted man genes. The deletions severely impaired the ancestral λ, but some evolved phage grew well on the deletion mutants, indicating that they regained infectivity by evolving the ability to infect hosts independently of the mannose permease. This coevolutionary arms race fulfils the model of an inverse gene- for- gene infection network. Taken together, the interactions at both the outer and inner membranes reveal that coevolutionary arms races can be richer and more complex than is often appreciated.

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Language(s): eng - English
 Dates: 2021-04-292021-05-042021-05-252021
 Publication Status: Published in print
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 Identifiers: DOI: 10.1099/mic.0.001063
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Project name : Marie Curie IIF Fellowship
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Funding organization : Max Planck Society

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Title: Microbiology
Source Genre: Journal
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Publ. Info: Reading, U.K. : Society for General Microbiology
Pages: - Volume / Issue: 167 (5) Sequence Number: 001063 Start / End Page: - Identifier: ISSN: 1350-0872
CoNE: https://pure.mpg.de/cone/journals/resource/954927546246