Enzyme polymorphism in Drosophila melanogaster populations in Iraq.
Electrophoretic studies of the degree and pattern of polymorphism at two third-chromosome loci, esterase-6 (Est-6) and phosphoglucomutase (PGM), were carried out in three Drosophila melanogaster populations collected from different localities in Iraq: Mosul, Tuwaitha, and Basrah. The results show that only the Tuwaitha population was polymorphic for both loci; the other two populations were polymorphic for Est-6 and monomorphic for PGM. The allele frequency changes at both loci were followed for 20 generations in an experimental cage derived from the Tuwaitha population; it was found that there is a deviation from Hardy-Weinberg equilibrium at both loci toward the homozygote.
Lamooza
S B
SB
Ali
S R
SR
Al-Taweel
A A
AA
D000818:Animals; D043182:Carboxylesterase; D002265:Carboxylic Ester Hydrolases / Q000235:genetics*; D029721:Drosophila Proteins; D004331:Drosophila melanogaster / Q000201:enzymology / Q000235:genetics*; D005787:Gene Frequency; D005828:Genetics, Population; D007493:Iraq; D007527:Isoenzymes / Q000235:genetics; D010733:Phosphoglucomutase / Q000235:genetics*; D011110:Polymorphism, Genetic
D029721:Drosophila Proteins; D007527:Isoenzymes; D002265:Carboxylic Ester Hydrolases; D043182:Carboxylesterase; C468266:Est-6 protein, Drosophila; D010733:Phosphoglucomutase