Polymorphisms for LDH and Transferrin Loci in Brook Trout Populations
- 1 January 1970
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 99 (1) , 179-192
- https://doi.org/10.1577/1548-8659(1970)99<179:pflatl>2.0.co;2
Abstract
Seven hatchery populations and seven of eight wild populations of brook trout sampled were polymorphic for both the LDH‐B and the transferrin loci. The degree of variations of allele frequencies as well as of the amount of heterozygosity was generally greater among hatchery fish than those from natural populations. Calculations of interpopulation heterogeneities of allele frequency differences permitted distinguishing all of the hatchery strains, but not all of the small wild populations, from each other. While gross intra‐population heterogeneity was found, an assessment of the breeding structure of wild brook trout in a stream was not possible. Electrophoretic variants were found in wild populations for two other LDH polypeptides and for one other serum protein. From assumptions that five loci were polymorphic in 13 total loci studied, the estimate of proportion of polymorphic loci in wild brook trout is 38.4%. The similar estimate for hatchery strains is 15.4%.This publication has 0 references indexed in Scilit: