Ayhan, Nazli and Gueler, Pinar and Onder, Banu Sebnem (2016) Altitudinal variation in lifespan of Drosophila melanogaster populations from the Firtina Valley, northeastern Turkey. JOURNAL OF THERMAL BIOLOGY, 61. pp. 91-97. ISSN 0306-4565,
Full text not available from this repository. (Request a copy)Abstract
Studies of attitudinal changes in phenotype and genotype can complement studies of latitudinal patterns and provide evidence of natural selection in response to climatic factors. In Drosophila melanogaster, latitudinal variation in phenotype and genotype has been well studied, but attitudinal patterns have rarely been investigated. We studied populations from six different altitudes varying between 35 m and 2173 m in the Firtina Valley in northeastern part of Turkey to evaluate clinal trends in lifespan under experimental conditions. Lifespan in the D. melanogaster populations was examined in relation to altitude, sex, temperature (25 degrees C and 29 degrees C), and dietary yeast concentration (5 g/L and 25 g/L). As expected high temperature decrease lifespan in all populations. However, it was shown that lifespan was slightly affected by dietary stress. We found that lifespan decreases significantly under thermal stress conditions with increasing altitude. Moreover, there was a slightly negative relationship between altitude and lifespan, which was closely associated with climatic factors such as temperature and precipitation, may suggest local adaptation to climate. (C) 2016 Elsevier Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STRESS RESISTANCE TRAITS; BODY-SIZE; EASTERN AUSTRALIA; CLINAL VARIATION; GEOGRAPHIC-VARIATION; DIETARY RESTRICTION; LATITUDINAL CLINES; DEVELOPMENTAL TIME; HISTORY CLINES; NORTH-AMERICA; Altitudinal gradient; Clinal variation; Food stress; Lifespan; Local adaptation; Temperature stress |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Apr 2019 13:07 |
| Last Modified: | 24 Apr 2019 13:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4200 |
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