Abstracts Capricornis swinhoei is one of the indangered wild animals in Taiwan. The objective of this study is using molecular biology and morphology methods to analyze the genetic diversity, observed population structure, differentiation and biogeographic relationships among the population of Capricornis swinhoei. Samples used in this study were collected from the Central Mountains located in Taiwan. DNA sequences (1099 bp) from the mitochondrial DNA (mtDNA) control region, D-loop, were used to test the phylogeographic relationships among the Capricornis swinhoei. A phylogenetic tree was constructed on the basis of GCG-Seq Web and MEGA softwares. In addition, distance analyses, neighbor-join, and maximum parsimony to resolve these phylogenetic relationships were performed. The C. sumatraensis and C. crispus sequence were also determined and used as the outgroups. Our findings clearly demonstrate that Capricornis swinhoei can be clustered into two groups, north and south groups, and consistent with the truth of geographic isolation. The data obtained from this study may facilitate the program of wildlife conservation in Taiwan.

The genus Capricornis Ogilby, 1837, is divided into three species and widely distributed in sourthern China, Tibet, Myanmar, IndoChinese peninsula, Malaysia peninsula, Sumatra, Japanese archipelagos and Taiwan. Using complete cytochrome b sequences (1140 bp) analyzes the genetic variation and phylogeny of genus Capricornis from Taiwan, Japan and Mainland China. Constructed by both distance and maximum parsimony methods, the phyloenetic tree distinguish the Capricornis to three clades: Formosan serow, Japanese serow, and Sumatran serow from mainland China. Formosan serow is more familiar with Sumatran serow than Japanese serow. Local populations of Formosan serow of Taiwan island and Japanese serow of the Japanese archipelagos are already differentiated. Serow and goral are apparently distinguishable. The results of Principal Component Analysis and Discriminant Analysis show that serows from Taiwan, Japan and mainland China and goral are apparently distinguishable at morphological characters. The variation of morphological analysis may be a good tool to identify serow and goral. From the paleogeology and fossil records of serow of Quaternary, we could infer that ancestors of serow from southwestern mountain of mainland China migrated to Taiwan island and Japanese archipelagos through the land bridge of east Asian islands to mainland China in the early Pleistocene caused by the glaciation of Quaternary, then separated from mainland of east Asia and speciation of serow occured in Taiwan island and Japanese archipelagos after the end of the glaciation of Quaternary.

第22回名古屋大学年代測定総合研究センターシンポジウム平成21(2009)年度報告