DNA似近距离及进化时间的估算

在似近分析和Ｎｅｉ氏遗传距离的基础上，给出了ＤＮＡ似近距离计算公式，并以ＤＮＡ似近距离估算类群间的分歧时间（进化时间），应用１０种限制内切酶对猕猴属（ｇｅｎｕｓ Ｍａｃａｃａ）内５个种ｍｔＤＮＡ的切点数据计算了这５个种的ＤＮＡ似近距离和进化时间，比较由ＤＮＡ似近距，遗传距离构建的歧化树和Ｆｏｏｄｅｎ及Ｄｅｌｓｏｎ的形态歧化树表明，除遗传距离的歧化树外，其它三种歧化树都有一个共同点，就是熊猴（Ｍ．ａ

DNA Resemblance-near Distance and Estimation of Evolutionary Time

A new distance method, called the method of DNA resemblance-near dis tance, was developed on the basis of resemblance near analysis and Nei's genetic distance. This method was applied to the data of restriction sites on mtDNAs of five species of genus Macaca. The DNA resemblance-near distances and divergent times among five species of genus Macaca were estimated and used to reconstruct the phylogenetic tree. We compared four phylogenetic trees among five species of genus M acaca. Except for tree made by using Nei's genetic distance, tree made by using DNA resemblance-near distance, Fooden's and Delson's morphologic trees are identical in the phylogenetic relationship between M. Assamensis and M. Thibetna who are first clustered in the three trees. The tree topology, tree made by using DNA resemblance distance is close to the Fooden's morphologic tree. The phylogenetic tree made by using DNA resemblance-near distance and the data of restriction sites on mtDNAs from Han, Miao, Buyi and Shui ethnic groups, was in agree with recordation in Chinese history.