초록

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Abstract ▼ AI-Helper

For the purpose of genetic stock indentification of three species of salmonid fishs and their hybrid, lactate dehydrogenase(LDH), malate dehydrogenase(MDH), isocitrate dehydrogenase(IDH), a-gylycerophosphate dehydrogenase(a-GPDH), malic enzyme(ME), 6-phospho-gluconate dehydrogenase(6-PGD), phosphogl...

For the purpose of genetic stock indentification of three species of salmonid fishs and their hybrid, lactate dehydrogenase(LDH), malate dehydrogenase(MDH), isocitrate dehydrogenase(IDH), a-gylycerophosphate dehydrogenase(a-GPDH), malic enzyme(ME), 6-phospho-gluconate dehydrogenase(6-PGD), phosphoglucose isomerase(PGI) and phospho-glucomutase(PGM) from skeletal muscle, liver, heart and gill tissues in all three species were analyzed. Chum and masu salmon showed no polymorphic patterns in all isozyme loci, however rainbow trout were found to have polymorphic patterns at MDH-B, LDH and IDH loci. Especially, significant differences were found at MDH-B loci between the three species and the IDH patterns of rainbow trout were also different from the other two species. These loci therefore can be utilized as efficient genetic markers for the identification of hybrids and improve the efficiency of fish breeding. There was no difference except PGI between diploid and triploid isozyme patterns but PGI showed some potential as a marker for triploid in masu salmon.