PT - JOURNAL ARTICLE
AU - Tajima, Fumio
TI - EVOLUTIONARY RELATIONSHIP OF DNA SEQUENCES IN FINITE POPULATIONS
DP - 1983 Oct 01
TA - Genetics
PG - 437--460
VI - 105
IP - 2
4099 - http://www.genetics.org/content/105/2/437.short
4100 - http://www.genetics.org/content/105/2/437.full
SO - Genetics1983 Oct 01; 105
AB - With the aim of analyzing and interpreting data on DNA polymorphism obtained by DNA sequencing or restriction enzyme technique, a mathematical theory on the expected evolutionary relationship among DNA sequences (nucleons) sampled is developed under the assumption that the evolutionary change of nucleons is determined solely by mutation and random genetic drift. The statistical property of the number of nucleotide differences between randomly chosen nucleons and that of heterozygosity or nucleon diversity is investigated using this theory. These studies indicate that the estimates of the average number of nucleotide differences and nucleon diversity have a large variance, and a large part of this variance is due to stochastic factors. Therefore, increasing sample size does not help reduce the variance significantly. The distribution of sample allele (nucleomorph) frequencies is also studied, and it is shown that a small number of samples are sufficient in order to know the distribution pattern