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. 2007 May 23;8:130. doi: 10.1186/1471-2164-8-130

Table 4.

Synonymous and nonsynonymous nucleotide substitution in pairwise comparisons of sequences from radish and Arabidopsis.

Genes1 Synonymous nucleotide substitutions (Ks) Nonsynonymous nucleotide substitutions (Ka) Ka:Ks2
Rfo-g24 43 84 1.95
Rfo-g27 48 76 1.58
g24-g27 43 93 2.16
g19-At1g63640 167 123 0.74
g21-At1g63650 111 107 0.96
g23-At1g63680 218 88 0.40

1 Rfo, g19, g21, g23, g24 and g27 are all genes from radish, while those starting "At" are genes from Arabidopsis. The entire protein coding regions were analysed.

2 Where Ka:Ks = 1 there is no selective pressure acting on the sequence; where Ka:Ks < 1 purifying selection, with a minimization of mutations acts on the sequence; where Ka:Ks > 1 diversifying selection favoring amino acid change acts on the sequence.