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Table 3 Relative abundance of dinucleotides in BCoV strains and summary of COA

From: Genome-wide analysis of codon usage bias in Bovine Coronavirus

   UU UC UA UG CU CC CA CG
Mean (S.D.a)   2.02(±0.001) 0.60(<10−3) 1.44(=0) 1.61(<10−3) 0.92(<10−3) 0.44(±0.001) 0.82(±0.001) 0.25(<10−3)
Axis 1b r 0.634615 0.163462 0.502747 0.574176 0.181319 −0.354396 0.717033 0.502747
  P <0.05 0.568 0.080 <0.05 0.528 0.218 <0.05 0.080
   AU AC AA AG GU GC GA GG
Mean (S.D.a)   1.47(=0) 0.70(=0) 1.24(<103) 0.93(±0.001) 1.27(<10−3) 0.70(<10−3) 0.84(±0.001) 0.68(=0)
Axis 1b r 0.502747 0.502747 0.502747 0.734890 0.431319 0.199176 0.288462 0.502747
  P 0.080 0.080 0.080 <0.05 0.133 0.490 0.317 0.080
  1. aMean values of BCoV strains relative dinucleotide ratios ± standard deviation. bCorrelation analysis between the first axis in COA and the sixteen dinucleotides frequencies in BCoV genes is shown