Original scientific paper
PLEIOTROPIC EFFECTS OF Ss GENES FOR SCALINESS IN COMMON CARP
T. Treer
R. Safner
I. Aničić
A. Kolak
Abstract
Although pleiotrophic effect on N gene in common carp (Cyprinus carpio) are well know and quite significant in some papers even better performances of scaled and mirror carps are reported. In order to determine possible pleiotropic effects of S gene, the four population from Croatian fish-farms and one from aquaria (full brothers and sisters), where analysed.
The frequency of recessive s gene on the farms was between 0,58 and 1,00. That was partly conditioned by simple estimate of the market demand and partly probably at random. The difference in penotypic expressions of the following parameters was investigated among te nereast relatives: mass, standard lenght, maximum height, number of soft spines in dorsal, anal and ventral fins and number of gill rakers. Statistically significant difference (p<0,05) was determined only in one case - the number of soft spines in anal fins of carps from Končanica farm. However, that probably occurred just by accident and low variation of this parameter for this difference was revised or didn't exist at all on other farms.
It can be concluded that at these fish-farms the pleiotropic effects of Ss genes were not deterroined and therefore are not to be taken into account in breeding procedures.
Keywords
Pleitropy; common. Carp; scaliness; gens
Hrčak ID:
48126
URI
Publication date:
28.12.1996.
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