Artículos de revistas
Cytogenetic studies of Mastacembelus armatus (Pisces, Mastacembelidae)
Fecha
1997-12-01Registro en:
Cytobios, v. 1996, n. 369, p. 83-89, 1997.
0011-4529
2-s2.0-3042974393
Autor
Instituto de Biociências
Universidade de Marília
Universidade de São Paulo (USP)
Institución
Resumen
The mitotic chromosomes, nucleolus organizer regions (NORs), C-banding pattern and nuclear DNA content of Mastacembelus armatus were studied. The karyotype (2n = 48; 10m + 6sm + 4st + 28a) was characterized by the presence of one chromosome pair with NORs and a small quantity of heterochromatin. The DNA content observed in erythrocyte nuclei of M. armatus was 1.39 ± 0.08 pg. Comparison of this karyotype with those of other Synbranchiformes revealed a strong similarity, suggesting that small chromosome rearrangements may have been maintained during its evolutionary history.