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

为了分析遗传距离、环境与杉木性状之间的关系，对杉木进行了以下3个研究对象的调查。(1)杉木幼苗特性测定杉木幼苗的杨氏模量（MOE）。结果如下：【〇！【〇！】杉木幼苗的MOE可以像以往的研究一样测量。2】杉木幼苗生长指标MOE与幼苗高度、幼苗直径的相关性不明显。3】我们可以选择MOE较高、生长速度较快的幼苗。4】当幼苗的测量位置越高时，MOE越大。在此基础上，从杉木作为结构构件和最终用途的角度出发，选育高MOE的杉木幼苗，培育高MOE的杉木幼苗。(2)实验地点设置：在九州大学、爱媛大学、三重大学、静冈大学、新泻大学和北海道大学的大学森林中设置了6个实验地点。(3)利用RAPD方法分析杉木品种的遗传距离，利用杉木cDNA文库的序列信息开发了许多联合DNA标记。利用这些标记，对从全国收集的25个杉属进行了DNA分析。这25科可分为2个类群，即日本海类群和太平洋海类群。认为从族谱的角度来看，从外形特征上划分的浦-杉系和omoet -杉系是两种主要的家谱。本研究中使用的冲之山杉、立山杉和佐岛属浦-杉系，山武杉属表-杉系。这些家谱很有可能在基因上存在距离。

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.