Figure 5

NOR-bearing chromosomes found in Chaetomys subspinosus, Sphiggurus villosus, Euryzygomatomys spinosus, and Myocastor coypus. Comparison of NOR positions in chromosomes of: (a) Chaetomys subspinosus, (b) the erethizontid Sphiggurus villosus, and (c) the echimyids Euryzygomatomys spinosus and Myocastor coypus.