Change search
ReferencesLink to record
Permanent link

Direct link
Characterization of Reproductive Dormancy in Male Drosophila melanogaster
Stockholm University, Faculty of Science, Department of Zoology.
Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
Stockholm University, Faculty of Science, Department of Zoology.
Show others and affiliations
Number of Authors: 5
2016 (English)In: Frontiers in Physiology, ISSN 1664-042X, E-ISSN 1664-042X, Vol. 7, 572Article in journal (Refereed) Published
Abstract [en]

Insects are known to respond to seasonal and adverse environmental changes by entering dormancy, also known as diapause. In some insect species, including Drosophila melanogaster, dormancy occurs in the adult organism and postpones reproduction. This adult dormancy has been studied in female flies where it is characterized by arrested development of ovaries, altered nutrient stores, lowered metabolism, increased stress and immune resistance and drastically extended lifespan. Male dormancy, however, has not been investigated in D. melanogaster, and its physiology is poorly known in most insects. Here we show that unmated 3-6 h old male flies placed at low temperature (11 degrees C) and short photoperiod (10 Light:14 Dark) enter a state of dormancy with arrested spermatogenesis and development of testes and male accessory glands. Over 3 weeks of diapause we see a dynamic increase in stored carbohydrates and an initial increase and then a decrease in lipids. We also note an up-regulated expression of genes involved in metabolism, stress responses and innate immunity. Interestingly, we found that male flies that entered reproductive dormancy do not attempt to mate females kept under non-diapause conditions (25 degrees C, 1 2L:1 2D), and conversely non-diapausing males do not mate females in dormancy. In summary, our study shows that male D. melanogaster can enter reproductive dormancy. However, our data suggest that dormant male flies deplete stored nutrients faster than females, studied earlier, and that males take longer to recover reproductive capacity after reintroduction to non-diapause conditions.

Place, publisher, year, edition, pages
2016. Vol. 7, 572
Keyword [en]
Drosophila melanogaster, diapause, reproduction, mating, metabolism
National Category
Zoology
Identifiers
URN: urn:nbn:se:su:diva-137622DOI: 10.3389/fphys.2016.00572ISI: 000388528100001OAI: oai:DiVA.org:su-137622DiVA: diva2:1063115
Available from: 2017-01-09 Created: 2017-01-09 Last updated: 2017-01-09Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Kubrak, Olga I.Theopold, UlrichNylin, SörenNässel, Dick R.
By organisation
Department of ZoologyDepartment of Molecular Biosciences, The Wenner-Gren Institute
In the same journal
Frontiers in Physiology
Zoology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 8 hits
ReferencesLink to record
Permanent link

Direct link