The most biased codon-pair contexts.

In order to identify the strongest bias in codon-pair contexts they were ranked according to their residual values in Eubacteria, Archaea and Eukaryota. The 10 lowest or highest residuals obtained in each group are shown. Codon-pair contexts that appeared in more than one group are underlined, while codon-pair contexts of identical codons are shown in bold. Eubacteria showed the highest codon-pair biases since the amplitude of the adjusted residuals varied between −309 and 921. Interestingly, 9 out of the 10 highest residuals of eukaryotic ORFeomes corresponded to codon-pair contexts formed by identical codons in both positions (in bold).

为了鉴定密码子对上下文（codon-pair contexts）中最强的偏好性，研究人员依据真细菌域（Eubacteria）、古菌域（Archaea）与真核生物域（Eukaryota）内的残差值对其进行排序。本研究展示了每个分组中得到的10个最低或最高残差值。出现于多个分组的密码子对上下文将添加下划线，而由两个位置均为相同密码子构成的密码子对上下文将以粗体显示。真细菌域展现出最高的密码子对偏好性，这是因为校正后残差值的波动范围介于−309与921之间。值得注意的是，真核生物开放阅读框组（ORFeomes）的10个最高残差值中，有9个对应于两个位置均由相同密码子构成的密码子对上下文（即粗体显示的条目）。