Mutational and Selective Pressures on Codon and Amino Acid Usage in Buchnera, Endosymbiotic Bacteria of Aphids

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Figure 3
Figure 3

Relative change in amino acid frequency (r) between Buchnera-Sgr genes and their E. coli orthologs, in relation to the CAI in E coli. Solid lines, residues with AT-rich codons (at least 2 A or Ts); dotted lines, residues with GC-rich codons (at least 2 G or Cs; formula of r in equation 1).

This Article

  1. Published in Advance December 12, 2003, doi: 10.1101/gr.1358104 Genome Res. 14: 44-53

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