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| Open AccessMobile elements drive recombination hotspots in the core genome of Staphylococcus aureus
Horizontal gene transfer occurs in most bacteria, yet it is unclear whether it happens in clonal species. Here, Everitt et al. show widespread within-species recombination, driven by mobile elements, in the genome of the pathogen Staphylococcus aureus, but no recombination between closely related strains.
- Richard G. Everitt
- , Xavier Didelot
- & Daniel J. Wilson
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Global metabolic network reorganization by adaptive mutations allows fast growth of Escherichia coli on glycerol
Organisms can adapt to environmental change but how this affects metabolism is unclear. Here, the authors provide a detailed analysis of the effects of individual adaptive mutations on the metabolic network in E. coli, and find evidence of metabolic reprogramming during laboratory evolution on glycerol.
- Kian-Kai Cheng
- , Baek-Seok Lee
- & Martin Robert
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Article
| Open AccessAncient origins determine global biogeography of hot and cold desert cyanobacteria
Microorganisms are abundant in many environments and understanding their dispersal between ecosystems is important for ecology and conservation. These authors demonstrate that cyanobacterial populations are specific to hot or cold deserts and that gene flow between different populations does not occur.
- Justin Bahl
- , Maggie C. Y. Lau
- & Stephen B. Pointing