Karyotype analysis of Barbus barbus L. and Barbus peloponnensius V. (Cyprinidae) and frequencies of breaks and gap-type structural chromosome changes in fishes from the river Vapa [Serbia, Yugoslavia]

Fister, S. . Faculty for Veterinary Medicine; Cakic, P.; Kataranovski, D.

Karyotype analysis of Barbus barbus L. and Barbus peloponnensius V. (Cyprinidae) and frequencies of breaks and gap-type structural chromosome changes in fishes from the river Vapa [Serbia, Yugoslavia]

1999

Fister, S. (University of Belgrade, Belgrade (Yugoslavia). Faculty for Veterinary Medicine) | Cakic, P. | Kataranovski, D.

The chromosomes of Barbus barbus L. and Barbus peloponnensius V. from the river Vapa, Serbia (Yugoslavia) were cytogenetically studied. Barbus barbus has a diploid chromosome number 2n=100. The karyotype consists of 30 metacentrics, 18 submetacentrics and subacrocentrics and 52 acrocentric chromosomes. Barbus peloponnensius V. also has the same diploid chromosome number 2n=100, but the karyotype contains 10 metacentrics, 44 submetacentrics and subacrocentrics and 46 acrocentric chromosomes. The frequencies of the breaks and gap-type structural chromosome aberrations were analysed. Relatively low frequencies were detected (lower than 1%) and they were at the level that might be found in the laboratory animal controls and in the tissue culture controls. The data obtained indicate that in the environmental conditions of the fishes studied, there were no genotoxic agents which could express their effects on the chromosomes of these living organisms.

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