Abstract
The spatial distribution of allelic frequencies and geographical distances of a natural population of Pylora japonica in Korea were studied. The species showed a significant positive spatial autocorrelation as measured by Moran's Ⅰ. Genetic similarity of individuals was found among subpopulation at up to a scale of a 12-m distance, and this was partly due to a combination of pollen and seed dispersal by wind or ramets, and therefore, a significant spatial autocorrelation was composed of a scale of 12-m intervals. The distribution of allelic frequencies of Pylora japonica in Korea was related to mating systems such as outcrossing and clonal reproduction. Within the Mt. Jeolyoung population, a strong spatial structure was observed for amplified fragment length polymorphism (AFLP) markers, indicating a very low amount of migration among subpopulations. The present study demonstrates that analysis of AFLP markers can successfully be used to study the spatial structure and genetic structure of P. japonica.
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