Genome Streamlining in a Cosmopolitan Oceanic Bacterium

@article{Giovannoni2005GenomeSI,
  title={Genome Streamlining in a Cosmopolitan Oceanic Bacterium},
  author={Stephen J. Giovannoni and H. James Tripp and Scott A. Givan and Mircea Podar and Kevin L. Vergin and Damon Baptista and Lisa Bibbs and Jonathan R Eads and Toby H. Richardson and Michiel O. Noordewier and Michael S. Rapp{\'e} and Jay M. Short and James C. Carrington and Eric J. Mathur},
  journal={Science},
  year={2005},
  volume={309},
  pages={1242 - 1245}
}
The SAR11 clade consists of very small, heterotrophic marine α-proteobacteria that are found throughout the oceans, where they account for about 25% of all microbial cells. Pelagibacter ubique, the first cultured member of this clade, has the smallest genome and encodes the smallest number of predicted open reading frames known for a free-living microorganism. In contrast to parasitic bacteria and archaea with small genomes, P. ubique has complete biosynthetic pathways for all 20 amino acids… 
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