| Revista: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000359864 |
| ISSN: | 1415-4757 |
| Autors: | Moreira, Camila Nascimento1 Di Nizo, Camilla Bruno2 Silva, Maria Jose de Jesus2 Yonenaga-Yassuda, Yatiyo1 Ventura, Karen1 |
| Institucions: | 1Universidade de Sao Paulo, Instituto de Biociencias, Sao Paulo. Brasil 2Instituto Butantan, Laboratorio de Ecologia e Evolucao, Sao Paulo. Brasil |
| Any: | 2013 |
| Període: | Jun |
| Volum: | 36 |
| Número: | 2 |
| Paginació: | 201-206 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Pseudoryzomys simplex, the false rice rat, is a monotypic genus of the Oryzomyini tribe (Sigmodontinae) distributed in part of Bolivia, Paraguay, Argentina and Brazil. Its diploid number has been described as 56 acrocentric chromosomes decreasing in size and no karyotype figure has been depicted. Herein, we present karyotypic data on P. simplex, including chromosome banding and molecular fluorescent in situ hybridization using telomeric sequences and the whole X-chromosome of its sister clade Holochilus brasiliensis (HBR) as probes. A case of remarkable autosomal heteromorphism due to the presence of a whole heterochromatic arm leading to the variability of FN is reported, as well as the occurrence of regions of homology between the X and Y chromosomes (pseudoautosomal regions) after chromosome painting with the HBR X probe on P. simplex metaphases |
| Disciplines | Biología |
| Paraules clau: | Genética, Mamíferos, Análisis citogenético, Heteromorfismo autosómico, Heterocromatina, Pseudoryzomys simplex, Sigmodontinae |
| Keyword: | Biology, Genetics, Mammals, Cytogenetic analysis, Autosomal heteromorphism, Heterochromatin, Pseudoryzomys simplex, Sigmodontinae |
| Text complet: | Texto completo (Ver HTML) |
