A COST OF REPRODUCTION IN DROSOPHILA MELANOGASTER: STRESS SUSCEPTIBILITY
Open Access
- 1 August 2001
- Vol. 55 (8) , 1600-1608
- https://doi.org/10.1111/j.0014-3820.2001.tb00679.x
Abstract
Little is known about physiological mechanisms that underlie the cost of reproduction. We tested the hypothesis that stress susceptibility is a cost of reproduction. In one test of our hypothesis, Drosophila melanogaster females were exposed to a juvenile hormone analog (methoprene) to stimulate egg production followed by stress assays. A sterile stock of D. melanogaster was employed as a control for reproduction. Exposure of fertile females to methoprene resulted in an increase in female reproduction and increased susceptibility to oxidative stress and starvation (compared to solvent controls). Sterile females did not exhibit a decrease in stress resistance. Mating also stimulated egg production. As a second test of our hypothesis, mated females were compared to virgin females. Mated fertile females were relatively susceptible to oxidative stress, but this relationship was not evident when mated and virgin sterile females were compared. The results of the present study support the hypothesis that stress susceptibility is a cost of reproduction.Keywords
This publication has 42 references indexed in Scilit:
- Extension of Life-Span by Loss of CHICO, a Drosophila Insulin Receptor Substrate ProteinScience, 2001
- Resource Acquisition and The Evolution of Stress Resistance in Drosophila melanogasterEvolution, 1998
- Metabolic Reserves and Evolved Stress Resistance inDrosophila melanogasterPhysiological Zoology, 1998
- Lack of response to sex-peptide results in increased cost of mating in dunce Drosophila melanogaster femalesJournal of Insect Physiology, 1996
- Metabolic Aspects of the Trade-Off between Fecundity and Longevity in Drosophila melanogasterPhysiological Zoology, 1996
- A Coordinate Upregulation of Antioxidant Gene Activities Is Associated With the Delayed Onset of Senescence in a Long-Lived Strain of DrosophilaThe Journals of Gerontology: Series A, 1995
- Cost of mating in Drosophila melanogaster females is mediated by male accessory gland productsNature, 1995
- Regulation of vitellogenesis in DrosophilaInternational Journal of Insect Morphology and Embryology, 1993
- No reduction in the cost of mating forDrosophila melanogasterfemales mating with spermless malesProceedings Of The Royal Society B-Biological Sciences, 1993
- Phenotypic plasticity and selection in Drosophila life‐history evolution. I. Nutrition and the cost of reproductionJournal of Evolutionary Biology, 1993