Oviposition-site preference and ADH activity inDrosophila melanogaster
✍ Scribed by N. Hougouto; M. C. Liétaert; M. Libion-Mannaert; E. Feytmans; A. Elens
- Publisher
- Springer Netherlands
- Year
- 1982
- Tongue
- English
- Weight
- 471 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0016-6707
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✦ Synopsis
Four D. melanogaster strains characterized by different alcohol dehydrogenase (ADH) activities were compared for their oviposition site preferences. The comparison was made between different temperatures (15 °C, 20 °C, 25 °C, 30 °C), day and night, replicates, and different concentrations in ethanol (00%, 5%, 10%, 15%) in the medium. All these factors influence behaviour. ADH activities seem to affect the oviposition site preferences as they directly affect ethanol tolerance and the ability to use alcohol as a source of metabolic energy.
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Strains of Drosophila melanogaster homozygous for either the AdhF or the AdhS allele were kept on food supplemented with ethanol for 20 generations. These strains (FE and SE) were tested for tolerance to ethanol and compared with control strains (FN and SN). The E strains showed increased tolerance
Oviposition-site preferences (O.S.P.) have been investigated in females of six sibling species of the Drosophila melanogaster subgroup. O.S.P, were determined for standard food components and yeast genotypes. Females of all species showed a strong preference for complete medium and avoidance of pure