Genetic polymorphism in the intron of the growth hormone gene of the bleak

Abstract

Comparison of nucleotide sequences of the growth hormone gene of two populations of bleak from the Main Donau Rivers, Southern Germany, revealed an A/T point mutation resulting in an AluI restriction fragment length polymorphism. The frequencies of alleles T and A are 0–95/0–05 in the Donau and 0–62/0–38 in the Main.