Abstract
Now, many researchers that study a higher plant are using Arabidopsis thariana as the subjects of an experiment. All the genome information on a col ecotype was determined by the genome project in 2000. Although many ecotype and close species exist in Arabidopsis, so far, research has been advanced only within some kinds of ecotypes such as col, ler and etc. Although there is a merit that can share the experiment result by this studying a standard ecotype intensively, it is thought that many non-identified factors also exist now. We think that can use for other ecotypes and close species analyzing these new factors. It decided to prepare the environment of ecotypes use. In the beginning, the SSLP marker was improved about 300 ecotypes and the classification of ecotypes is tried. We want to increase the number of SSLP markers as much as possible from now.
