Rapid stress hardening in the Antarctic midge improves male fertility by increasing courtship success and preventing decline of accessory gland proteins following cold exposure
| Autor: | Joshua B. Benoit, David L. Denlinger, Richard E. Lee, J. D. Gantz, Geoffrey Finch, Oluwaseun M. Ajayi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Male
030110 physiology 0301 basic medicine Physiology Acclimatization media_common.quotation_subject Cold exposure Antarctic Regions Improved survival Aquatic Science Chironomidae Courtship Andrology 03 medical and health sciences Animals Mating Molecular Biology Ecology Evolution Behavior and Systematics Cold stress media_common Belgica antarctica biology biology.organism_classification Cold Temperature Fertility 030104 developmental biology Male fertility Larva Insect Science Midge Female Animal Science and Zoology |
| Zdroj: | Journal of Experimental Biology. 224 |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.242506 |
| Popis: | Rapid hardening is a process that quickly improves an animal's performance following exposure to potentially damaging stress. In this study of the Antarctic midge, Belgica antarctica (Diptera, Chironomidae), we examined how rapid hardening in response to dehydration (RDH) or cold (RCH) improves male pre- and post-copulatory function when the insects are subsequently subjected to a damaging cold exposure. Neither RDH nor RCH improved survival in response to lethal cold stress, but male activity and mating success following sublethal cold exposure were enhanced. Egg viability decreased following direct exposure of the mating males to sublethal cold but improved following RCH and RDH. Sublethal cold exposure reduced the expression of four accessory gland proteins, while expression remained high in males exposed to RCH. Though rapid hardening may be cryptic in males, this study shows that it can be revealed by pre- and post-copulatory interactions with females. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|