Abstract
A total of 62 Atlantic salmon (Salmo salar L.) individuals of both wild and hatchery origins were sampled in order to investigate their mitochondrial DNA variation. The sampled individuals represented the Baltic salmon population of the Nemunas River basin. NADH dehydrogenase ND1, ND3/4 and ND5/6 subunits of mtDNA were amplified and subjected to restriction fragment length polymorphism (RFLP) analysis. The results obtained were compared with data from previous studies of mtDNA variation in the populations of Atlantic and Baltic salmon. This study supports the eastern origin of Baltic populations of Atlantic salmon. The relationship of the Nemunas salmon population to the postglacial history of the Baltic region is discussed.
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