New genes out of nothing

One key question in evolutionary biology is how novel genes arise and develop. Swedish researchers now show how new genes and functions that are advantageous to bacteria can be selected from random DNA sequences. The results ...

Analysis reveals key gene for bacterial infection

To successfully infect their hosts, bacteria need to evade the host immune system in order to reproduce and spread. Over the course of evolution, hosts—such as humans—develop increasingly sophisticated defenses against ...

Antibiotic resistances spread faster than so far thought

By studying fish raised in aquaculture, researchers from the Helmholtz Zentrum München, the University of Copenhagen and the University of Campinas in Brazil have shed new light on the mechanisms by which antibiotic resistance ...

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