title: Added heterochromatin segments in chromosomes of squirrel monkeys (Saimiri sciureus).
abstract: Variant structural homozygosity, observed previously only in plants and insects, is reported herein for the first time in mammalian chromosomes. The addition of a heterochromatic chromosome segment to either one or both homologues is described in autosomes B5 and B12 of the squirrel monkey, Saimiri sciureus.
mesh_terms: D000818:Animals; D002875:Chromosomes; D005260:Female; D000882:Haplorhini; D006570:Heterochromatin; D006720:Homozygote; D006824:Hybridization, Genetic; D007962:Leukocytes / Q000166:cytology; D008297:Male; D012453:Saimiri
chemical_list: D006570:Heterochromatin