Krüger J, Vogel F
Institut für Humangenetik und Anthropologie der Universität, Heidelberg, Federal Republic of Germany.
Hum Genet. 1989 Jul;82(4):308-12. doi: 10.1007/BF00273987.
It has been suggested that the mitochondrial DNA (mtDNA) of all present-day human beings stems exclusively from one woman who lived about 200000 years ago in Africa; examination of the problem by the mathematical theory of random walks supposedly renders alternatives very unlikely. However, a statistical argument first used by Fisher indicates that this hypothesis is untenable, at least if the assumptions made by previous workers are accepted. All present-day mtDNA might go back to one individual, especially if small populations and population bottlenecks with very small numbers of reproducing individuals are assumed; nevertheless, this phase in the evolution of Homo sapiens probably dates back considerably more than 200000 years.
有人提出，当今所有人的线粒体DNA（mtDNA）都仅源于一位生活在约20万年前非洲的女性；据推测，用随机游走的数学理论来研究这个问题会使其他可能性变得非常小。然而，费希尔最早使用的一个统计学观点表明，至少在接受先前研究者所做假设的情况下，这一假设是站不住脚的。所有当今的线粒体DNA可能追溯到一个个体，特别是如果假设存在小群体以及繁殖个体数量极少的种群瓶颈的话；然而，智人进化的这个阶段可能可追溯到远不止20万年前。
