Laikre Linda, Jorde Per Erik, Ryman Nils
Division of Population Genetics, Stockholm University, S-106 91, Stockholm, Sweden.
Evolution. 1998 Jun;52(3):910-915. doi: 10.1111/j.1558-5646.1998.tb03716.x.
We report data on genetic drift of mitochondrial DNA (mtDNA) haplotypes in a natural brown trout (Salmo trutta) population in Sweden. Large temporal frequency shifts were observed over the 14 consecutive year classes studied. The observed rate of drift was used to estimate the effective size of the population. This effective size applies to the female segment of the population as mtDNA is maternally inherited. The magnitude of mtDNA haplotype frequency change is compared with the corresponding allele frequency changes at 14 allozyme loci in the same population. The female effective size is estimated as 58, which is approximately half the effective size of 97 for the total population (both sexes) previously obtained from the shifts of allozyme allele frequencies.
我们报告了瑞典一个天然褐鳟（Salmo trutta）种群中线粒体DNA（mtDNA）单倍型的遗传漂变数据。在连续研究的14个年份组中观察到了较大的时间频率变化。利用观察到的漂变率来估计种群的有效大小。由于mtDNA是母系遗传的，所以这个有效大小适用于种群的雌性部分。将mtDNA单倍型频率变化的幅度与同一种群中14个同工酶位点相应的等位基因频率变化进行了比较。估计雌性有效大小为58，这大约是之前从同工酶等位基因频率变化中获得的整个种群（两性）有效大小97的一半。
