| Registro completo |
| Provedor de dados: |
Genet. Mol. Biol.
|
| País: |
Brazil
|
| Título: |
Multiple interstitial ribosomal sites (NORs) in the Brazilian squirrel Sciurus aestuans ingrami (Rodentia, Sciuridae) with 2n = 40: an overview of Sciurus cytogenetics
|
| Autores: |
Fagundes,Valéria
Christoff,Alexandre Uarth
Amaro-Ghilard,Renata Cecília
Scheibler,Daniel R.
Yonenaga-Yassuda,Yatiyo
|
| Data: |
2003-01-01
|
| Ano: |
2003
|
| Palavras-chave: |
Squirrels
Chromosomes
Karyotype
NORs
Rodentia
|
| Resumo: |
This is the first time the karyotype of the Brazilian squirrel Sciurusaestuans ingrami, with 2n = 40, is described. The karyotype of this species comprises 18 pairs of biarmed and one minute pair of acrocentric autosomes, a medium-sized submetacentric X and a medium-sized acrocentric Y. Four pairs have an interstitial secondary constriction, co-located with nucleolar organizer regions (NORs), identified by silver-staining technique and fluorescent in situ hybridization (FISH) with ribosomal 18S/28S probes. The occurrence of multiple interstitial NORs is rare in rodents, and this is one of the few examples, identified by a molecular cytogenetics approach.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300007
|
| Editor: |
Sociedade Brasileira de Genética
|
| Relação: |
10.1590/S1415-47572003000300007
|
| Formato: |
text/html
|
| Fonte: |
Genetics and Molecular Biology v.26 n.3 2003
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
