Bacterial evolution through the selective loss of beneficial Genes. Trade-offs in expression involving two loci.

@article{Zinser2003BacterialET,
  title={Bacterial evolution through the selective loss of beneficial Genes. Trade-offs in expression involving two loci.},
  author={Erik R Zinser and Dominique Schneider and Michel Blot and Roberto Kolter},
  journal={Genetics},
  year={2003},
  volume={164 4},
  pages={1271-7}
}
The loss of preexisting genes or gene activities during evolution is a major mechanism of ecological specialization. Evolutionary processes that can account for gene loss or inactivation have so far been restricted to one of two mechanisms: direct selection for the loss of gene activities that are disadvantageous under the conditions of selection (i.e., antagonistic pleiotropy) and selection-independent genetic drift of neutral (or nearly neutral) mutations (i.e., mutation accumulation). In… CONTINUE READING