关键词: 香榧, 品种, RAPD 标记, 分子鉴别, 分子分类

Abstract: The endosperm DNA samples of the seeds of a same individual plant of eight main cultivars (clones) of Torreya grandis are analyzed with RAPD technology by using 23 primers that have distinct polymor phism。The result indicated that there was a relatively large difference between the eight varieties at the level of DNA molecule; the marker genotype of varieties was established according to particularly isolated bands in the experiments; the clone varieties of Torreya grandis can be identified at the level of DNA molecule according to the marker genotype; the eight varieties of Torreya grandis were analyzed systematically with a assembling analysis tech nology, and the analyt ic result tallied with the two classes of tradit ional morphological classif icat ion on the whole.

Key words: Torreya grandis, Cultivars, RAPD marker, Molecular identificat ion, Molecular classification