Evolution of the GST omega gene family in 12 Drosophila species.

@article{Walters2009EvolutionOT,
  title={Evolution of the GST omega gene family in 12 Drosophila species.},
  author={Kathryn B Walters and Paaqua A. Grant and Diana L E Johnson},
  journal={The Journal of heredity},
  year={2009},
  volume={100 6},
  pages={
          742-53
        }
}
Gene families provide a unique system to study the evolutionary relationships between related genes both within and between organisms. We can ascertain whether members of a gene family in different species are orthologs or paralogs. We may also search for evidence that may explain why duplicate genes are present. The availability of genome sequences for 12 Drosophila species allows us to address these questions with respect to the evolution of one gene family, the glutathione S transferase (GST… 
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