Phylogeny and biogeography of xylophagous insects distributed in relict areas in template zone on the northern hemisphere based on the mitochondrial DNA sequences.

研究在北半球模板区的林区进行，采集枯木内生活的甲虫、白蚁、蟑螂等食材昆虫。还对栖息地和群落组成等生态数据进行了检查。这种昆虫在酒精中保存，用于鉴定和DNA分析。进一步，我们根据线粒体DNA序列，如细胞色素氧化酶亚基I(COI)、亚基II(COII)和16S核糖体RNA(RRNA)，分析了各类食木昆虫的系统发育关系。陆栖昆虫区系的系统发育分析使古地理假说的检验成为可能，近年来，线粒体DNA(MtDNA)序列已成为各种昆虫类群系统发育推断的标准工具。在本项目中，我们在北半球不同地区进行了基于线粒体DNA序列的甲虫、白蚁和蟑螂等食木昆虫的系统发育和生物地理学研究。并对森林昆虫进行了生态调查和区系调查。

The researches were conducted in the forestry areas in template zone on the northern hemisphere, and collect wood-feeding insects such as beetles, termites and cockroaches living inside the dead wood. Ecological data such as habitat and colony composition were also examined. The insects preserve in alcohol for identification and DNA analyses. Further, We analyzed the phylogenetic relationships of the each group of the wood feeding insects based on the mitochondrial DNA sequences such as cytochrome oxidase subunit I(COI), that of subunit II (COII) and 16S ribosomal RNA (rRNA).Phylogenetic analyses of fauna of terrestrial insects enable testing of paleogeographical hypotheses, and recently, mitochondrial DNA (mtDNA) sequences have became a standard tool for phylogenetic inference of various insect groups. In the present project, we made our field researches in the various areas of the Northern Hemisphere on the phylogeny and biogeography of wood-feeding insects such as beetles, termites and cockroaches based on mitochondrial DNA sequences. We also made the ecological survey on the forest insects as well as faunal survey.