Gene segregation in gynogenetic brown trout (Salmo trutta L.): systematically high frequencies of post-reduction

Abstract

The post-reduction rates of 12 protein loci were measured in gynogenetic lines of brown trout (Salmo trutta ) obtained by retention of the second polar body. Post-reduction occurs frequently at all the loci and is systematic at 7 of them. Similar results were previously observed in rainbow trout and complete interference could be a common feature in salmonids. The relationship between the degree of divergence of the duplicated loci and their recombination rate is also examined and discussed.