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 asc...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Colombia |
| Recursos: | Pontificia Universidad Javeriana |
| Repositorio: | Repositorio Universidad Javeriana |
| Idioma: | inglés |
| OAI Identifier: | oai:repository.javeriana.edu.co:10554/32071 |
| Acesso em linha: | http://revistas.javeriana.edu.co/index.php/scientarium/article/view/5081 http://hdl.handle.net/10554/32071 |
| Access Level: | acceso abierto |
| Palavra-chave: | null Cricétidos; cromosomas; roedores; Thomasomys |
| Resumo: | 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. |
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