Conservation of the 5S-bearing chromosome pair and co-localization with major rDNA clusters in five species of Astyanax (Pisces, Characidae).
Cytogenet Genome Res
; 97(3-4): 229-33, 2002.
Article
em En
| MEDLINE
| ID: mdl-12438717
Major and 5S ribosomal genes have been localized in chromosomes from five fish species, genus Astyanax, using in situ hybridization (FISH) with 28S and 5S rDNA probes. In situ signals for the major rDNA co-localized with the 5S rDNA clusters in the pericentromeric region of one marker chromosome in all five species analyzed. The conserved localization of these two rDNA clusters in the five related Astyanax species was considered as indicative of a close relationship among them. The use of these molecular markers for elucidating evolutionary relationships among closely related taxa is discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
DNA Ribossômico
/
RNA Ribossômico 5S
/
Mapeamento Cromossômico
/
Peixes
Limite:
Animals
Idioma:
En
Revista:
Cytogenet Genome Res
Assunto da revista:
GENETICA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Suíça