The Development of bioarchaeological methods of rice agricultural study in ancient Japan.

我们在他的项目中取得了以下成果。从众多花卉遗存的考古标本中，对禾本科植物进行了植硅体分析。对从日本不同遗址中回收的考古标本进行了扫描电子显微镜和DNA分析。我们成功地从碳化米粒中恢复了古老的DNA，从而可以鉴定这些DNA都是日本的。根据该项目的这些结果，我们可以说，从生物考古角度建立了重建古代水稻种植的方法。尤其是碳化稻谷古DNA修复的成功，将有助于进一步研究古稻栽培的起源和传统。

We have proceeded the following results in his project.1. Phytolith analysis was engaged in family Gramineae from the archaeological samples among many floral remains.2. SEM and DNA analysis were applied in the archaeological samples recovered from various sites in Japan.3. We were suceeded in retreaving ancient DNA from carbonized rice grain (Oryza sativa), then we could identify that these DNA were all those of Japonica.4. According to these results in this project, we can say that the methods for the reconstruction of ancient rice cultivation have been established bioarchaeologically. Especially, the success of retreaving of ancient DNA of carbonized rice (Oriza sativa) grain would contribute to the future studies of the origin and traditions of ancient rice cultivation.