A GROWTH-HORMONE PSEUDOGENE IN THE SALMON GENOME

Representatives of the fish family Salmonidae were reported to possess two nonallelic growth hormone (GH)-encoding genes. In addition to tho se, we found a third GH-like sequence in a chum salmon genomic DNA lib rary. A number of point mutations and large deletions abolished the po ssibility of expressing this sequence, showing that the chum salmon ge nomic DNA contains a GH pseudogene besides functional GH genes.