Petrosian V G, Tokarskaia O N, Danilkin A A, Ryskov A P
Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 117984 Russia.
Genetika. 2002 Jun;38(6):812-9.
A technique for obtaining unbiased estimates of genetic parameters (allelic frequencies of RAPD loci, heterozygosity (H), Wright's F statistic, and Nei's genetic distances) in populations of the European (Capreolus capreolus L.) and Siberian (Capreolus pygargus Pall.) roe deer is presented. The technique employs jackknifing and multiple comparative analysis based on a modified Holmes's procedure for Bonferroni's test. It was demonstrated that samples from local groups of roe deer in the Trans-Ural region did not differ significantly in allelic frequencies (0.8, 0.81, and 0.78; P > 0.447) or Nei's genetic distances (0.0056, 0.0273, and 0.0218; P = 0.26), but they could be differentiated based on Wright's F statistic (0.0346, 0.0519, and 0.0450; P = 10(-9)). The parameters of intrapopulation heterozygosity (from 0.18 to 0.042) formed a gradient from the east to the west. Calibration estimates of molecular evolution rate in the family Cervidae obtained based on published data and Jukes-Cantor genetic distances estimated in this study demonstrated that the Siberian roe deer has split into two subspecies, C. pygargus pygargus Pall. and C. pygargus tianschanicus Satunin in the interval between 229 and 462.3 thousand years ago. The species formation of the Siberian and European roe deer was dated between 1.375 and 2.75 Myr ago. Based on the results obtained we recommend the approaches used in the study for analysis of population genetic structure and phylogenetic relationships between populations, subspecies, species, and higher taxa.
本文介绍了一种用于获取欧洲狍(Capreolus capreolus L.)和西伯利亚狍(Capreolus pygargus Pall.)种群遗传参数(RAPD位点的等位基因频率、杂合度(H)、赖特F统计量和内氏遗传距离)无偏估计值的技术。该技术采用基于改良的福尔摩斯法进行邦费罗尼检验的刀切法和多重比较分析。结果表明,来自乌拉尔地区当地狍群的样本在等位基因频率(0.8、0.81和0.78;P>0.447)或内氏遗传距离(0.0056、0.0273和0.0218;P = 0.26)上没有显著差异,但可以根据赖特F统计量(0.0346、0.0519和0.0450;P = 10^(-9))进行区分。种群内杂合度参数(从0.18到0.042)形成了从东到西的梯度。根据已发表的数据和本研究中估计的朱克斯-坎托遗传距离获得的鹿科分子进化速率的校准估计表明,西伯利亚狍在22.9万至46.23万年前分化为两个亚种,即C. pygargus pygargus Pall.和C. pygargus tianschanicus Satunin。西伯利亚狍和欧洲狍的物种形成时间可追溯到137.5万至275万年前。基于所得结果,我们推荐本研究中使用的方法用于分析种群遗传结构以及种群、亚种、物种和高级分类单元之间的系统发育关系。