Affiliation: | *Chromosome Research Unit, Faculty of Science, Hokkaido University, North 10, West 8, Kita-Ku, Sapporo 060;†Laboratory of Cytogenetics, Graduate School of Environmental Earth Science, Hokkaido University, North 10, West 5, Kita-ku, Sapporo 060;‡Wildlife Management Laboratory, Hokkaido Research Center, Forestry and Forest Products Research Institute, Hitsujigaoka 7, Toyohira-ku, Sapporo 062, Japan |