COMPARACION CITOGENETICA DE DOS POBLACIONES DE THOMASOMYS LANIGER LANIGER (THOMAS 1895) RODENTIA CRICETIDAE, 115 EN LOS PARAMOS DE CRUZ VERDE Y EL VERJON

Cell cultures from bone marrow and peripheral blood obtained by cardiac puncture were used to describe the karyotype of the field m o use Tomasomys laniger laniger in two populations found in the areas of Cruz Verde andEl V erjon, Cundinamarca, (Col.). C-banding and Giemsa staining allowed us to ascertain its diploid number 2n=24 with nine pairs of metacentric, two submetacentric and one acrocentric chromosomes; the fundamental number (FN) was 46. The X chromosomes have a heterochromatic markerband in the q arm; pair 10 has conspicuous satcllites and the Y is a large and uni-que acrocentric chromosome equivalent to more than 5% of the total length of the genome. Polymorphism was observed in and between the two populations. Cytogenetic characteristics of Th. laniger lani-ger differ from other species of the genus, and show a great deal of similarities to o"ther cricetids such as Cricetulus griseus.

• Autores: Ospina De Dulce, Bertha; Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá; Montenegro Orbes, Alicia; Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá; Cerino Faggion, Antonella; Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá
• Tipo de recurso: Article of journal
• Fecha de publicación: 2013
• Institución: Pontificia Universidad Javeriana
• Repositorio: Repositorio Universidad Javeriana
• Idioma: eng
• OAI Identifier: oai:repository.javeriana.edu.co:10554/32071
• Acceso en línea: http://revistas.javeriana.edu.co/index.php/scientarium/article/view/5081; http://hdl.handle.net/10554/32071
• Palabra clave: null; Cricétidos; cromosomas; roedores; Thomasomys; null
• Rights: openAccess
• License: Atribución-NoComercial-SinDerivadas 4.0 Internacional