Abstract
C-band patterns of some Odontophrynus species from Brazil are described. O. americanus 2n and 4n are cryptic species similar to 0. cultripes 2n, but their C-banding patterns are different. In O. americanus 2n the C-band appears at the secondary constriction of chromosomes 4. In O. americanus 4n and 0. cultripes the C-band appears at the secondary constriction of chromosomes 11. 0. cultripes chromosomes 2. 3 and 6, have also an intercalary band. Furthermore, fine centromeric bands in several weeks old preparations of these species were observed. The possibility of a structural or chemical heterogeneity of those heterochromatic regions is discussed.
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Ruiz, I.R.G., Beçak, W. Further studies on polyploid amphibians. Chromosoma 54, 69–74 (1976). https://doi.org/10.1007/BF00331834
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DOI: https://doi.org/10.1007/BF00331834