[Cytogenetics of Cercopithecus (mona) campbelli. Comparison with other cercopithecus species and man (author's transl)].

The karyotype of C. (mona) campbelli campbelli is described after applying various banding techniques. After comparing this karyotype with those of numerous other Cercopithecus species it becomes possible to situate C. (m.) c. campbelli in the phylogeny of the group. A comparison with the human karyotype, after high resolution banding, shows that both species differ by some forty rearrangements, essentially fissions and inversions. A fission of the chromosome homologous to the human no. 10 occurred in this taxon, thus reproducing a chromosome present in Prosimii and Lagomorpha (rabbit), which can be considered as a reverse mutation.