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

Table 3.

Percentages of Genes in Buchnera and E. coli Orthologs Located on the Leading (vs. Lagging) Strand for Three Classes of Increasing Codon Adaptive Index in E. coli, and in Ribosomal Proteins Plus GroEL/S



Buchnera-Aps

Buchnera-Sgr

Buchnera-Bpl

E. coli K12

n
% leading strand
n
% leading strand
n
% leading strand
n
% leading strand
CAI-Eco <0.35 170 50.0% 165 49.1% 139 51.1% 173 59.0%
0.35 < CAI-Eco <0.65 328 56.4% 310 56.5% 302 57.0% 339 67.5%
CAI-Eco >0.65 57 66.7% 56 67.9% 55 67.3% 58 81.0%
groEL/S + ribosomal
56
78.6%
56
78.6%
56
78.6%
56
92.9%

This Article

  1. Genome Res. 14: 44-53

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