The contrasting genetic architecture of wing size and shape in Drosophila melanogaster

Article Abstract:

Contrasting genetic architecture of Drosophila melanogaster wing shape and size has been studied using generation means and triple-test-cross analyses. Results support epistatic variance as being perhaps more common in natural populations than had been thought and substantial directional selection on wing size, but not shape.

Body size, Body weights and measures

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The genetic bases of divergence in desiccation and starvation resistance among tropical and temperate populations of Drosophila melanogaster

Article Abstract:

Drosophila melanogaster has been studied using line-cross analysis to look into the genetic bases of divergence in desiccation and starvation resistance in temperate and tropical populations of the flies. Resistance to desiccation tends to be higher in populations from temperate areas vs tropical ones, but the reverse is true for starvation resistance.

Reports, Physiological aspects, Water, Starvation, Genetic research

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Genetic variability of quantitative traits in Drosophila melanogaster (fruit fly) natural populations: analysis of wild-living flies and of several laboratory generations

Article Abstract:

Analysis of wild-living flies and of several laboratory generations has been carried out to study genetic variability of quantitative traits of natural populations of Drosophila melanogaster, a fruit fly. Correlation over generations shows genetic repeatability and ought to be valuable in experiments on isofemale lines. For wing length phenotypic variability was much higher in nature than in the laboratory and parent-offspring regressions gave significant and high heritability values for the remaining traits other than color of abdomen segment 5.

France, Insects, Color of animals, Animal coloration, Quantitative genetics

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