Geographical polymorphism of amylase in Drosophila ananassae and its relatives

Strains of Drosophila ananassae from various places in the Tropics were investigated for their electrophoretical amylase pattern. Eleven isoamylases were found in adult flies. African populations were much more polymorphic than those from the Far East, and showed multibanded phenotypes, suggesting a...

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Veröffentlicht in:Heredity 1989-08, Vol.63 (1), p.67-72
Hauptverfasser: Da Lage, J-L, Cariou, M-L, David, J-R
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description Strains of Drosophila ananassae from various places in the Tropics were investigated for their electrophoretical amylase pattern. Eleven isoamylases were found in adult flies. African populations were much more polymorphic than those from the Far East, and showed multibanded phenotypes, suggesting a multiplication of the Amy structural gene, with at least four copies per haploid genome in certain populations. Nine other species of the D. ananassae subgroup had weak amylase activity and only one or two variants were found in each species. D. monieri and D. varians are closely related to D. ananassae and showed a single band, similar to the isoamylase 3 of D. ananassae , which suggests that this might be an ancestral allele.
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subjects Africa
Amylases - genetics
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Cytogenetics
Diptera
Drosophila - enzymology
Drosophila - genetics
Drosophilidae
Ecology
Evolutionary Biology
Female
Fundamental and applied biological sciences. Psychology
Genes
Genetics of eukaryotes. Biological and molecular evolution
Geography
Human Genetics
Isoenzymes - genetics
original-article
Phenotype
Plant Genetics and Genomics
Polymorphism, Genetic
Population genetics, reproduction patterns
Protozoa. Invertebrata
Species Specificity
Thallophyta, bryophyta
Tropical Climate
Vegetals
title Geographical polymorphism of amylase in Drosophila ananassae and its relatives
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