这个你得具体看文章的计算方法，这里查阅了一篇文献计算方法如下，他是用KaKs_Calculator计算，但是没有直接用KaKs_Calculator里面的分离时间：
我用这篇文章的算法计算了一下的确是这样：
但是，至于KaKs_Calculator结果里面的Divergence-Time列是怎么个单位尺度，我这里还么有查到具体结果。
关键参数r，突变速率的设置，可参考以上文章计算；
参考文献如下：
https://academic.oup.com/gbe/article/8/2/302/2574013
其他物种突变速率查询的相关文献：
[1] Wolfe K H, Li W H, Sharp P M. Rates ofnucleotide substitution vary greatly among plant mitochondrial, chloroplast,and nuclear DNAs[J]. Proceedings of the National Academy of Sciences, 1987,84(24): 9054-9058.
[2] Gaut B S, Morton B R, McCaig B C, et al.Substitution rate comparisons between grasses and palms: synonymous ratedifferences at the nuclear gene Adh parallel rate differences at the plastidgene rbcL[J]. Proceedings of the National Academy of Sciences, 1996, 93(19):10274-10279.
[3] Koch M A, Haubold B, Mitchell-Olds T. Comparativeevolutionary analysis of chalcone synthase and alcohol dehydrogenase loci inArabidopsis, Arabis, and related genera (Brassicaceae)[J]. Molecular biologyand evolution, 2000, 17(10): 1483-1498.
