Artigo Acesso aberto Produção Nacional Revisado por pares

Comparative cytogenetics among populations of Astyanax altiparanae (Characiformes, Characidae, Incertae sedis)

2009; Brazilian Society of Genetics; Volume: 32; Issue: 4 Linguagem: Inglês

10.1590/s1415-47572009005000078

ISSN

1678-4685

Autores

Maressa Ferreira Neto, Marcelo Ricardo Vicari, Edemar Furquim de Camargo, Roberto Ferreira Artoni, Orlando Moreira‐Filho,

Tópico(s)

CRISPR and Genetic Engineering

Resumo

Cytogenetic data are presented for Astyanax altiparanae populations from three Brazilian hydrographic systems. The chromosomal data obtained in A. altiparanae support the hypothesis of diploid number conservation. However, small differences in the karyotype formula and number of nucleolar organizer regions were observed in these populations. The apparent karyotypical similarity among the studied populations strongly suggests a close relationship among them with some chromosomal divergences due to gene flow restriction.

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