title: Studies of the squirrel monkey, Saimiri sciureus, genome. I. Cytological characterization of chromosomal heterozygosity.
abstract: Chromosomal banding analyses have revealed two nonhomologous pericentric inversions in the telocentric group of chromosomes of a squirrel monkey, Saimiri sciureus. This individual is probably an intersubspecific hybrid whose parents originated from different geographical locations. The C-banding pattern shows polymorphism in location and amount of constitutive heterochromatin in at least four pairs of chromosomes. Ammoniacal silver (Ag-AS) staining specific for locating the nucleolar organizers indicates that these are located on only one pair of chromosomes and that there is a difference in the size of the nucleolus organizer regions between the homologs of this pair.
mesh_terms: D000818:Animals; D007446:Chromosome Inversion; D002875:Chromosomes; D005838:Genotype; D000882:Haplorhini; D006570:Heterochromatin; D006579:Heterozygote; D007621:Karyotyping; D008297:Male; D008938:Mitosis; D011110:Polymorphism, Genetic; D012453:Saimiri
chemical_list: D006570:Heterochromatin