Evolution in action: habitat transition from sediment to the pelagial leads to genome streamlining in Methylophilaceae

  title={Evolution in action: habitat transition from sediment to the pelagial leads to genome streamlining in Methylophilaceae},
  author={Michaela M. Salcher and Daniel Schaefle and Melissa Kaspar and Stefan M. Neuenschwander and Rohit Ghai},
  journal={The ISME Journal},
  pages={2764 - 2777}
The most abundant aquatic microbes are small in cell and genome size. Genome-streamlining theory predicts gene loss caused by evolutionary selection driven by environmental factors, favouring superior competitors for limiting resources. However, evolutionary histories of such abundant, genome-streamlined microbes remain largely unknown. Here we reconstruct the series of steps in the evolution of some of the most abundant genome-streamlined microbes in freshwaters (“Ca. Methylopumilus”) and… 

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