Studies on isozyme variations in a few members of Drosophila nasuta subgroup

Ramesh, S. R. ; Rajasekarasetty, Madhavasetty Ramalingam (1980) Studies on isozyme variations in a few members of Drosophila nasuta subgroup Proceedings of the Indian Academy of Sciences, Section B, 89 (3). pp. 197-213. ISSN 0370-0097

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Isozyme variation at six enzyme loci has been studied involving nine members of Drosophila nasuta subgroup, by employing polyacrylamide gel electrophoretic technique. Alleles at three loci namely Acph, Aph and α-Est are found to be highly polymorphic; whereas at β-Est locus the alleles are less variable while at α-Gpdh and To loci, the alleles are found to be least variable. Null alleles are encountered in low frequencies at α-Est, β-Est and c-Gpdh enzyme loci. The allelic frequencies obtained at the six enzyme loci have been utilised as a yardstick to measure the extent of genetic relationship between the species studied. The genetic identity and genetic distance between these closely-related species have been estimated by adopting the Nei's formula. These findings have been discussed with reference to earlier cytogenetic and hybridisation studies made on this subgroup.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:nasuta Subgroup; Morphophenotypic Complex; Isozymes; Genetic Identity; Genetic Distance; Drosophila nasuta
ID Code:32629
Deposited On:30 Mar 2011 11:53
Last Modified:17 May 2016 15:27

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