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Nonapeptides mediate trade-offs in parental care strategy.
- Source :
-
Hormones and behavior [Horm Behav] 2020 May; Vol. 121, pp. 104717. Date of Electronic Publication: 2020 Feb 19. - Publication Year :
- 2020
-
Abstract
- Parental care represents a suite of distinct behaviors performed by parents to maximize fitness. Dynamic shifts in parental care behaviors, such as between nest defense and direct provisioning of the offspring, are required in response to environmental variation. However, the neural mechanisms which mediate such behavioral shifts remain a mystery. The anemonefish, Amphiprion ocellaris, represents an experimentally valuable model in social neuroscience which is conducive to manipulating the environment while simultaneously measuring parental care. The goal of this study was to determine the extent to which arginine vasotocin (AVT) and isotocin (IT) signaling are necessary for males to shift between direct egg care and aggressive nest defense in the presence of intruders, Domino damselfish (Dascyllus trimaculatus). The IT receptor antagonist desGly-NH <subscript>2</subscript> -d(CH <subscript>2</subscript> ) <subscript>5</subscript> [D-Tyr <superscript>2</superscript> ,Thr <superscript>4</superscript> ]OVT, significantly reduced direct egg care, while at the same time increased levels of aggressive nest defense relative to vehicle. Conversely, blockade of AVT using the antagonist d(CH <subscript>2</subscript> ) <subscript>5</subscript> [Tyr(Me) <superscript>2</superscript> ]AVP, reduced aggression and tended to increase egg care. Results demonstrate that male anemonefish alter their parental strategy in response to allospecific intruders, and that IT and AVT signaling oppositely regulate parental care displays of aggression versus egg care.<br /> (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Subjects :
- Aggression drug effects
Animals
Male
Nesting Behavior drug effects
Oxytocin metabolism
Oxytocin physiology
Receptors, Oxytocin antagonists & inhibitors
Receptors, Oxytocin metabolism
Receptors, Oxytocin physiology
Signal Transduction drug effects
Signal Transduction physiology
Social Behavior
Territoriality
Vasotocin analogs & derivatives
Vasotocin antagonists & inhibitors
Vasotocin metabolism
Aggression physiology
Nesting Behavior physiology
Oxytocin analogs & derivatives
Perciformes physiology
Vasotocin physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1095-6867
- Volume :
- 121
- Database :
- MEDLINE
- Journal :
- Hormones and behavior
- Publication Type :
- Academic Journal
- Accession number :
- 32061617
- Full Text :
- https://doi.org/10.1016/j.yhbeh.2020.104717