关键词: 生化分类, 过氧化物酶, 酯酶, 鼠科动物

Abstract: The allelic variations of peroxidase in the tissues of heart and esterase isozymes in the tissues of liver for two species of the genus Apodemus and four species of the genus Rattus were analysed to studies on biochemical systematics of the Rattus group. the results obtained showed that there are four zones of peroxidase in the tissues of heart for each species and their migratory velocities were faster for the R. niviventer and R. edwardsi species than for the R. rattoides and R. norvegicus species. The distances between the each two zones were farther for the genus Apodemus than for the genus Rattus. This feature may bet reated as the difference between the two genera. The number of the esterase zone and their mobilities were obviously different from the species to the species.The difference of the esterase isozymes between the two generalie in that there is one zone with the fastest movemen t in the genus Rattus and two zones with the fastest movement in the genus Apodemus. The phenetic analysis with the nine biochemical characters seems in ally the R. ra ttoides is closed to the R. norvegicus, and the R. niviventer is closed to the R. edwardsi,When they are compared without group species, the R. edwardsi is nearer to the species of Apodemus than the other three species in the genus Rattus.

Key words: Biochemical systematics, Murid, Peroxidase, Esterase, Isozyme