Genetic management of Japanese Black Pine population

抄録

Japanese black pine resistant trees have been planted to countermeasure the PWN infection in old Japanese black pine populations. It gives an advantage, but if not managed properly will lead to a genetic disturbance. DNA analysis using six primer SSR markers. Ikinomatsubara, a Japanese black pine coastal forest, dominantly 2 genetic patterns and 92 of 269 samples have private alleles. PCoA analysis among populations show Ikinomatsubara has similar to Minamishimabara, while resistant clones from Kyushu similar to Okagaki. In order to maintain the forest to last long, we should consider to do screening and selection of the resistant clone based on existing pine forests structure pattern, including Ikinomatsubara, then confirming the origin. Last, determine ‘safe number’ of resistant clone to infuse and adjust the planting-place properly in a given site.