Biochemical Genetic Variation at Six Loci in Four Stocks of Rainbow Trout
- 1 July 1972
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 101 (3) , 494-502
- https://doi.org/10.1577/1548-8659(1972)101<494:bgvasl>2.0.co;2
Abstract
Biochemical variants of the enzymes alpha glycerophosphate dehydrogenase (AGPD), lactate dehydrogenase (LDH), malate dehydrogenase (MDH), tetrazolium oxidase (TO), and phos-phoglucomutase (PGM) and of the serum protein transferrin (Tfn) were identified in four stocks of rainbow trout (Salmo gairdneri). Various lines of evidence indicated that each polymorphic system reflected genetic variation at discrete loci. Each stock had a distinct genetic profile based on the frequency of different biochemical variants. The findings have considerable potential for application including: (1) characterization and identification of stocks; (2) indicators of inbreeding in hatchery and wild populations; (3) studies of physiological differences of genetically related forms of a particular enzyme and of environmental factors influencing retention of these variant genes in different populations; (4) use as genetic markers in seeking linkages; and (5) studies of ecological and evolutionary relations among rainbow tr...Keywords
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