Tsakas S, Krimbas C B
Genetics. 1976 Oct;84(2):399-401. doi: 10.1093/genetics/84.2.399.
The use of a pair of populations removes the problems posed by a structured phylogeny (pointed out by A. ROBERTSON) and permits the application of the original test of LEWONTIN and KRAKAUER. In the case of 2n populations studied a suggestion is made to use only n pairs in such a way that no population appears in more than one pair. Data on Dacus analyzed this way show that at least two out of six genes studied are or have been selected.
使用一对种群消除了结构化系统发育带来的问题(A. 罗伯逊指出),并允许应用莱文廷和克拉考尔最初的检验方法。在研究2n个种群的情况下,建议仅使用n对种群,且方式为任何一个种群都不会出现在多于一对的组合中。以这种方式分析的关于果实蝇的数据表明,所研究的六个基因中至少有两个正在或已经被选择。