Display options
Cite
Vasconcelos AJ, Molina WF. Cytogenetical studies in five Atlantic Anguilliformes fishes. Genet Mol Biol. 2009;32(1):83-90doi: 10.1590/S1415-47572009005000015.
Vasconcelos, A. J., & Molina, W. F. (2009). Cytogenetical studies in five Atlantic Anguilliformes fishes. Genetics and molecular biology, 32(1), 83-90. https://doi.org/10.1590/S1415-47572009005000015
Vasconcelos, Antonio Jales Moraes, and Molina, Wagner Franco. "Cytogenetical studies in five Atlantic Anguilliformes fishes." Genetics and molecular biology vol. 32,1 (2009): 83-90. doi: https://doi.org/10.1590/S1415-47572009005000015
Vasconcelos AJ, Molina WF. Cytogenetical studies in five Atlantic Anguilliformes fishes. Genet Mol Biol. 2009 Jan;32(1):83-90. doi: 10.1590/S1415-47572009005000015. Epub 2009 Jan 16. PMID: 21637650; PMCID: PMC3032961.
Copy Download .nbib Format: NLM
Share it on

Genet Mol Biol. 2009 Jan;32(1):83-90. doi: 10.1590/S1415-47572009005000015. Epub 2009 Jan 16.

Cytogenetical studies in five Atlantic Anguilliformes fishes.

Genetics and molecular biology

Antonio Jales Moraes Vasconcelos, Wagner Franco Molina

Affiliations

  1. Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN Brazil.

PMID: 21637650 PMCID: PMC3032961 DOI: 10.1590/S1415-47572009005000015

Abstract

The order Anguilliformes comprises 15 families, 141 genera and 791 fish species. Eight families had at least one karyotyped species, with a prevalence of 2n = 38 chromosomes and high fundamental numbers (FN). The only exception to this pattern is the family Muraenidae, in which the eight species analyzed presented 2n = 42 chromosomes. Despite of the large number of Anguilliformes species, karyotypic reports are available for only a few representatives. In the present work, a species of Ophichthidae, Myrichthys ocellatus (2n = 38; 8m+14sm+10st+6a; FN = 70) and four species of Muraenidae, Enchelycore nigricans (2n = 42; 6m+8sm+12st+16a; FN = 68), Gymnothorax miliaris (2n = 42; 14m+18sm+10st; FN = 84), G. vicinus (2n = 42; 8m+6sm+28a; FN = 56) and Muraena pavonina (2n = 42; 6m+4sm+32a; FN = 52), collected along the Northeastern coast of Brazil and around the St Peter and St Paul Archipelago were analyzed. Typical large metacentric chromosomes were observed in all species. Conspicuous polymorphic heterochromatic regions were observed at the centromeres of most chromosomes and at single ribosomal sites. The data obtained for Ophichthidae corroborate the hypothesis of a karyotypic diversification mainly due to pericentric inversions and Robertsonian rearrangements, while the identification of constant chromosome numbers in Muraenidae (2n = 42) suggests a karyotype diversification through pericentric inversions and heterochromatin processes.

Keywords: Anguilliformes; Muraenidae; Ophichthidae; fish cytogenetics

References

  1. Genetica. 2007 Jun;130(2):153-60 - PubMed
  2. Chromosome Res. 2000;8(5):443-5 - PubMed
  3. Genetica. 2005 Mar;123(3):227-33 - PubMed
  4. Chromosome Res. 2000;8(7):603-13 - PubMed
  5. Cytogenet Cell Genet. 1979;23(1-2):33-8 - PubMed
  6. Genetica. 2003 Nov;119(3):253-8 - PubMed
  7. Experientia. 1980 Aug 15;36(8):1014-5 - PubMed
  8. Genetica. 2001;111(1-3):397-412 - PubMed
  9. Exp Cell Res. 1972 Nov;75(1):304-6 - PubMed
  10. J Mol Evol. 1990 Oct;31(4):265-81 - PubMed
  11. Heredity (Edinb). 2004 Aug;93(2):228-33 - PubMed
  12. Cytogenet Cell Genet. 1980;26(1):36-40 - PubMed
  13. Cytogenet Cell Genet. 1983;36(4):589-98 - PubMed

Publication Types