Chromosome Polymorphism in the Tree Shrew (Tupaia Glis)

Abstract
The study of the somatic and meiotic chromosomes in 2 male and 2 female tree shrews (T. glis) disclosed the existence of a chromsomal polymorphism in the species. The polymorphism affects the X chromosomes and chromosome pairs No. 11 and 25. The mechanisms producing it are probably different for each chromosome pair. Study of the meiotic chromosomes did not disclose the mechanisms originating the polymorphism.