Moreover, species with near homology relationship on evolution share the near codon usage frequency and preference index or the similar index.
在同源性方面，在进化上比较接近的物种，基因的密码子使用频率和使用偏性指标比较接近或基本相同。
The result show:1 there is same bases usage frequency in coding sequence between leading strand and lagging strand 2 There also same bases usage frequency in first codon, second codon and third codon.
先导链与滞后链在第一、第二、第三密码子碱基使用频率基本一致且显著正相关。
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