The Relationship between genetic distance, environment and the properties on Sugi

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In order to analyze the relation between relationship between genetic distance, environment and the properties on Sugi, the following three subjects were investigated.(1) Measurement of the properties on young Sugi seedlings Young's moduli(MOE) of young Sugi seedlings were measured. The results are followed :【○!1】 MOE of young Sugi seedlings could be measured as previous studies.【○!2】 The correlation between MOE and height or diameter of young Sugi seedlings, the indexes of growth, was not recognized.【○!3】 We can select the seedlings which have relatively high MOE and the capability of relatively rapid growth.【○!4】 MOE becomes larger as the measured position of a seedling become higher.From these results, it is expected to breed Sugi with high MOE by selecting young seedlings with high MOE and make maps of Sugi Young's MOE from the viewpoint of using Sugi as structural components and end use.(2) Seting the experimental locationsThe six experimental locations were set up in the university forests of Kyushu University, Ehime University, Mie University, Shizuoka University, Niigata University and Hokkaido University.(3) Analysis of genetic distance of Sugi breeds by RAPD methodMany joint DNA markers have been developed by the sequence information gotten from the Sugi cDNA libraries. Using these markers, DNA of 25 Sugi families, collected from the whole country, were analyzed. These 25 families were classified to 2 groups, the Nippon Sea group and the Pacific Sea one. It is suggested that Ura-sugi genealogy and Omote-sugi one, which were classified from figural features, are main two genealogies from the viewpoint of Genom. Okinoyamasugi, Tateyamasugi and Sadogashima used in this research are included in Ura-sugi genealogy, on the other hand Sanbusugi is in Omote-sugi genealogy. There is strong possibility that these genealogies are distance off genetically.