Karyotypes of three species of marine catfishes from Brazil

Authors

  • Vicente Gomes Universidade de São Paulo; Instituto Oceanográfico
  • Van Ngan Phan Universidade de São Paulo; Instituto Oceanográfico
  • Maria José de Arruda Campos Rocha Passos Universidade de São Paulo; Instituto Oceanográfico

DOI:

https://doi.org/10.1590/S1679-87591994000100004

Keywords:

Chromosome, karyotype, Siluriformes, Ariidae

Abstract

The chromosomes of three species of fishes belonging to the family Ariidae -Netuma barba, Genidens genidens and Amis parkeri - were studied after conventional Giemsa staining. All three species have a diploid chromosome number of 2n = 56. The karyotype comprises 18 metacentric (m), 18 submetacentric (sm), 18 subtelocentric (st) and 2 telocentric (t) pairs for N. barba; 12 m, 20 sm, 20 st and 41 pairs for G. genidens; 16 m, 16 sm, 22 st and 21 pairs for A. parkeri. The results obtained from these three species are compared with each other and with those found in literature.

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Published

1994-12-01

Issue

Vol. 42 No. 1-2 (1994)

Section

Artigos

How to Cite

Karyotypes of three species of marine catfishes from Brazil . (1994). Boletim Do Instituto Oceanografico, 42(1-2), 55-61. https://doi.org/10.1590/S1679-87591994000100004