Organelle Evolution: What's in a Name?

@article{Keeling2008OrganelleEW,
  title={Organelle Evolution: What's in a Name?},
  author={Patrick J. Keeling and John M. Archibald},
  journal={Current Biology},
  year={2008},
  volume={18},
  pages={R345-R347}
}
Plastids are organelles derived from cyanobacterial endosymbionts and the evolutionary process that gave rise to them is well understood. Or is it? The complete genome sequence of a recently evolved photosynthetic body in Paulinella chromatophora is cause for reflection on the distinction between 'endosymbiont' and 'organelle', and how the boundaries between these terms can blur. 

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