Mechanism creating Biodiversity of Alpine Plants in Sakhalin

在库页岛约60个地点进行了实地研究，制作了2000张植物标本室标本，收集了500份DNA样本。我们攀登并考察了契科霍瓦山、弗拉基米罗夫卡山、芝丹科山和昌加山。（Fukuda et al.2002）对日本及其邻近地区包括库页岛的马先蒿（Pedicularis resupinata）叶绿体DNA进行了分析。在库页岛发现的单倍型A和E也在日本和韩国发现，但在千岛群岛发现了另一个单倍型D （Fujii 2003）。采用PCR-RFLP方法对云杉叶绿体DNA进行了分析。库页岛北部的人口在遗传上与东北亚相似，而库页岛南部的人口与北海道相似。阐明了库页岛和千岛群岛裸子植物的地理分布。澄清了特征分布格局，并提出了S-K指数（Takahashi 2004）。澄清了库页岛和千岛群岛16科29属33种的染色体数目（Probatova et al.2004）。

Field research was conducted at about 60 localities in Sakhalin.2000 sheets of the herbarium specimens were made and 500 DNA samples were collected. We climbed and surveyed Mt.Chekohova, Mt.Vladimirovka, Mt.Zhidanko, and Mt.Changa. Adenocaulon was newly recorded from Sakhalin (Fukuda et al.2002)Chloroplast DNA of Pedicularis resupinata was analyzen in Japan and its neighboring regions including Sakhalin. Haplotypes A and E found in Sakhalin are also found in Japan and Korea, but another haplotype D is found in the Kuril Islands (Fujii 2003). Chloroplast DNA of Picea Jezoensis was analyzed by PCR-RFLP methods. The population of northern Sakhalin is similar to that of northeastern Asia genetically, and that of southern Sakhalin similar to that of Hokkaido. Geographical distribution of gymnosperms are clarified in Sakhalin and the Kurils. The characteristic distribution patterns were clarified and S-K index was newly proposed (Takahashi 2004). Chromosome numbers of 16 families, 29 genera and 33 species of Sakhalin and the Kurils were clarified (Probatova et al.2004).