Natural genetic polymorphism and phylogeography of Siberian sturgeon Acipenser baerii Brandt, 1869

Abstract

Five populations of Siberian sturgeon Acipenser baerii collected throughout the species distribution range (Lake Baikal, Lena, Yenisei, Kolyma, and Irtysh rivers) were examined for genetic polymorphism using five tetraploid microsatellite loci and the mitochondrial DNA control region. It was demonstrated that Siberian sturgeon was represented by genetically well-differentiated groups that corresponded to hydrographic basins, Ob–Irtysh, Baikal–Yenisei, Lena, and Kolyma. Population assignment of the Siberian sturgeon broodstock should be considered in the restocking programs.

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