Study on basic construction of tree DNA barcoding for forest resource conservation and its effectiveness

日本有1100多种木本植物。收集了约1000种约7000个个体的标本，分析了它们在叶绿体DNA上的三个区域的DNA序列。结果表明，用这些序列进行DNA条码编码可以识别75%的物种。由于植物体内的所有组织都含有相同的DNA，DNA条形码可以利用根、木材和种子和/或叶片的样本来识别物种名称，这些样本通过观察外部形状很难识别。

There are more than 1, 100 woody plant species in Japan. The specimen of about 7, 000 individuals including about 1, 000 species were collected and their DNA sequences of three regions on chloroplast DNA were analyzed. It is clarified that 75% of all species can be identified by DNA barcoding with these sequences. Since all tissues of plant body hold the same DNA, DNA barcoding can be applied to identify species name using samples of root, timber, and pieces of seed and/or leaf which are difficult to identify by observation of outer shape.