Constitutive heterochromatin and nucleolus organizer region in the knifefish, Apteronotus albifrons (Pisces, Apteronotidae)
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Data
1981-09-01
Autores
Toledo, Lurdes F. de Almeida [UNESP]
Foresti, F. [UNESP]
Toledo, S. de Almeida [UNESP]
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Birkhauser Verlag Ag
Resumo
The C-banding and silver staining of the chromosomes of the knifefish Apteronotus albifrons (2n=24), demonstrated the presence of constitutive heterochromatin in the centromeric region of every chromosome, except pair 4, where the entire long arm was darkly stained, the silver stain positive nucleolus organizer region (NOR) being embedded in it. © 1981 Birkhüuser Verlag.
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Experientia. Basel: Birkhauser Verlag Ag, v. 37, n. 9, p. 953-954, 1981.