Fish Cytogenetics
Karyoevolution of the toadfish Thalassophryne nattereri (Batrachoidiformes: Batrachoididae)
Authors: G.W.W.F. Costa and W.F. Molina
The Batrachoididae includes some venomous brackish and marine fish found in the Atlantic, Indian and Pacific oceans. This family is composed of 69 species, distributed among 19 genera. Species of the genus Thalassophryne have been reported along the coast of Rio Grande do Norte (Brazil); T. nattereri has been responsible for a large number of human injuri.. Read More»
- Genet. Mol. Res. 8(3):
- vol8-3gmr640
- DOI:
- 10.4238/vol8-3gmr640
Chromosomal evolution in large pelagic oceanic apex predators, the barracudas (Sphyraenidae, Percomorpha)
Authors: R.X. Soares, M.B. Cioffi, L.A.C. Bertollo, A.T. Borges, G.W.W.F. Costa and W.F. Molina
Sphyraena (barracudas) represents the only genus of the Sphyraenidae family and includes 27 species distributed into the tropical and subtropical oceanic regions. These pelagic predators can reach large sizes and, thus, attracting significant interest from commercial and sport fishing. Evolutionary data for this fish group, as.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029644
- DOI:
- 10.4238/gmr16029644
Performance of human immunostimulating agents in the improvement of fish cytogenetic preparations
Authors: W.F. Molina, D.E.O. Alves, W.C. Ara�ºjo, P.A. Martinez, M.F.M. Silva and G.W.W.F. Costa
Inoculation with bacterial or fungal antigens that stimulate cell proliferation has been widely used to obtain metaphases for cytogenetic studies of fish. We evaluated the potential of new pharmaceutical compounds as mitogenic agents in fish, testing the efficacy of Aminovac® (mixed antigens and epsilon-acetamidocaproic ac.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr840
- DOI:
- 10.4238/vol9-3gmr840
Occurrence of natural triploidy in Rhamdia quelen (Siluriformes, Heptapteridae)
Authors: J.R. Tsuda, V.P.O. de Moraes, L. Giuliano-Caetano and A.L. Dias
Five specimens of Rhamdia quelen collected from the Lindóia Stream, PR, Brazil, were cytogenetically analyzed. The diploid chromosome number found was 58, including 30 metacentric, 16 submetacentric, 10 subtelocentric, and 2 acrocentric chromosomes. Supernumerary or B chromosomes, frequently observed in this fish group,.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr949
- DOI:
- 10.4238/vol9-3gmr949
Cytogenetic studies in Brazilian marine Sciaenidae and Sparidae fishes (Perciformes)
Authors: I.V. Accioly and W.F. Molina
Fishes from the families Sciaenidae and Sparidae, the former comprising coastal species associated with shallow waters on the continental shelf and the latter composed of typically marine species, are of significant economic value. Karyotypic data are available for about 20% of the total number of species in these groups. In t.. Read More»
- Genet. Mol. Res. 7(2):
- vol7-2gmr427
- DOI:
- 10.4238/vol7-2gmr427
Robertsonian rearrangements and pericentric inversions in Scaridae fish (Perciformes)
Authors: D.C.S. Sena and W.F. Molina
The parrotfishes (family Scaridae) are comprised of the subfamilies Sparisomatinae and Scarinae. They are important agents of marine bioerosion, which rework the substrate with their beaklike jaws. Despite their importance, there are no published cytogenetic data on this group. We made cytogenetic analyses of Sparisoma axillar.. Read More»
- Genet. Mol. Res. 6(3):
- vol7-2erratagmr32
- DOI:
- 10.4238/vol7-2erratagmr32