Lenok(Brachymystax lenok),which was a kind of Chinese famous endemic fish,had undergone a dramatic decline for the impacts of human and environment.In this paper,the genetic diversity of the twenty individuals of B.lenok and B.tumernsis populations,which from the Ussuri River,were analyzed using the AFLP method.In total,322 polymorphic loci of 433 were amplified with 12 primer pairs and the percentage of polymorphic loci was 74.36%.In the 130 and 136 bp,there were two differential bands of the B.tumernsis' ...