Allozyme variation and population structure of Chimaphila japonica in Korea

抄録

Enzyme electrophoresis was used to estimate genetic diversity and population structure of Chimaphila japonica Miquel in Korea. The percent of polymorphic loci within the enzymes was 66.7%. Genetic diversity at the species level and at the population level was high (Hes = 0.279; Hep = 0.256, respectively), whereas the extent of the population divergence was relatively low (G_ST = 0.086). F_IS, a measure of the deviation from random mating within the 16 populations, was 0.374. An indirect estimate of the number of migrants per generation (Nm = 2.65) indicates that gene flow is high among Korean populations of the species. In addition, analysis of fixation indices revealed a substantial heterozygosity deficiency in some populations and at some loci. Mean genetic identity between populations was 0.973. It is highly probable that directional toward genetic uniformity in a relatively homogenous habitat is thought to be operated among Korean populations of C. japonica.