α-GLYCEROPHOSPHATE DEHYDROGENASE POLYMORPHISM IN SOME DROSOPHILIDS
RAVI PARAKSH *
Department of Biosciences, M. D. University, Rohtak-124 001, India
JYOUTSNA . *
Department of Biosciences, M. D. University, Rohtak-124 001, India
J. P. YADAV *
Department of Biosciences, M. D. University, Rohtak-124 001, India
MANJU SHARMA *
Department of Biosciences, M. D. University, Rohtak-124 001, India
*Author to whom correspondence should be addressed.
Abstract
Horizontal starch gel electrophoretic analysis of single individuals from naturally caught as well as laboratory strains of fifteen drosophilids revealed very low amount of allelic variability and heterozygosity at a signle locus coding α-glycerophosphate dehydrogenase (α-GPDH). The most common α-GPDH allozymes are unique in D. immigrans, D. buscki and Zaprionus species. The observed low level of genic variation at α-GPDH locus has been discussed.
Keywords: Isozyme polymorphism, α-GPDH allozymes, allelic frequencies, heterozy-gosity, drosophilids