Abstract

RENGIFO, LAURA YISSEL  and  BUENO, MARTA LUCÍA. Cytogenetic Characterization in Individuals of the Genus Lagothrix in Colombia (Primates: Atelidae). Acta biol.Colomb. [online]. 2011, vol.16, n.2, pp.99-108. ISSN 0120-548X.

The genus Lagothrix is represented in Colombia by Lagothrix lagothricha lagothricha and Lagothrix lagothricha lugens but their cytogenetic features have not been well characterized. We studied 18 captive individuals (6, L. l. lugens and 12, L. L. lagothricha) from zoos and rescue centers, using techniques of peripheral blood culture and G, C, R, Q and NOR chromosome banding. We determined the standard karyotype 2n = 62 for all analyzed individuals with two karyotype variants (also known as karyomorphs) that showed different fundamental numbers due to a pericentric inversion on chromosome pair 24. Within these karyomorphs other polymorphisms were found in several pairs that were not crucial to distinguishing subspecies. We recommend reviewing the taxonomy of the genus especially at the subspecies level.

Keywords : pericentric inversion; polymorphisms.

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