Genetic features of sturgeon fishes of the Azerbaijan aquatory of the Caspian Sea

Abstract : The main goal of this investigation was to study the genetic biodiversity and endemicity of the sturgeon species inhabiting the Azerbaijan area of the Caspian Sea and Kura River. The genetic material was collected from the tail fins of 125 sturgeon fishes сaught from the water bodies of Azerbaijan (Caspian Sea and Kura River), that is, from wild nature and sturgeon breeding plants, and investigated in the research laboratory of LetgenPro in Turkey. At the result of the examination of the deoxyribonucleic acid (here and further DNA) samples of sturgeon fish was found that the Acipencer-s of the Caspian Sea area belonging to the Azerbaijan water basins has a specific genetic structure. The many allelic variants of the six Microsatellite loci (LS19, LS34, AoxD234, AnacE4, AnaC11, and LS54) were identified. In the collected genetic material, three to five alleles ("variants") of each locus were obtained. The degree of heterozygosity (diversity) of alleles was determined as 0.660, 0.708, 0.588, 0.655, 0.641, and 0.599, respectively, that is, the percentage of occurrence of different polymorphisms of loci was determined between 58.8-70.8%. The high biodiversity of the local Acipencer species reflected resistance to the influence of negative environmental factors. The allelic variants of the loci were comprised with the similar loci described in other areas. The genetics of the sturgeon population in the area is found to be different from that of the sturgeons in Russia, Iran, Kazakstan, Hungary, Ukraine, and Moldova.
Keyword : Allele, biodiversity, Caspian, locus, microsatellite, sturgeon
Author(s) : Taghiyeva, S. A., Rzayev, E., Ozjan, F. M.
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Published Issue : 2025 Vol. 20 Number 1


2025 Vol. 20 Number 1