Acta Biológica Colombiana
Print version ISSN 0120-548X
ARANGO, CAROLINA; BUENO, MARTHA LUCÍA and CHACON, MARCOS NICOLÁS. Karyologic Variation in Different Phenotypes of Sciurus granatensis (Rodentia, Sciuridae). Acta biol.Colomb. [online]. 2007, vol.12, suppl.1, pp. 3-12. ISSN 0120-548X.
Seven specimens of Sciurus granatensis (redtailed squirrel) rescued from illegal fauna traffic in Colombia were studied; they had different phenotypes according to colour. G, C, Q, R and NOR chromosome banding was used, being found a 2n=42 diploid number for the Sciurus granatensis Colombian squirrels. There were 3 karyomorphs according to fundamental number (FN) and different chromosomal characteristics caused by rearregement, suggesting that S. granatensis represents a complex of species. Relationships between karyotype and phenotype were not observed. The variation in the colour of sqirrels fur was probably due to environmental conditions.
Keywords : Sciurus; karyotype; redtailed squirrel; Colombia; illegal traffic.