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An Electrophoretic Comparison Of Gene Loci In Etheostoma Nigrum And Etheostoma Olmstedi From The James River Drainage, Virginia, Randall Keith Falls
An Electrophoretic Comparison Of Gene Loci In Etheostoma Nigrum And Etheostoma Olmstedi From The James River Drainage, Virginia, Randall Keith Falls
Master's Theses
As many as five different populations of Etheostoma nigrum and Etheostoma olmstedi have been identified in the James River drainage, Virginia. Genetic variation of these populations was analyzed with starch gel electrophoresis and revealed only three distinct populations. Nine loci encoding five enzyme systems and two loci encoding muscle proteins were examined in tissue homogenates. All populations were monomorphic with the exception of the esterase-3 (Est-3), phosphoglucomutase (Pgm-1) and phosphoglucose isomerase (Pgi) loci. Two alleles of Est-3 exhibited activity in the homozygous and heterozygous conditions. Pgm-1 occurred as two alleles with a high degree of heterozygosity (46% for E. nigrum …