Effects of pairing on color change and central gene expression in lined seahorses.

Autor: Mederos SL; Animal Behavior Graduate Group, University of California, Davis, California, USA., Duarte RC; Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo André, Brazil., Mastoras M; Genome Center, MIND Institute, and Department of Biochemistry and Molecular Medicine, University of California, Davis, California, USA., Dennis MY; Genome Center, MIND Institute, and Department of Biochemistry and Molecular Medicine, University of California, Davis, California, USA., Settles ML; Bioinformatics Core Facility, University of California, Davis, California, USA., Lau AR; Animal Behavior Graduate Group, University of California, Davis, California, USA.; California National Primate Research Center, University of California, Davis, California, USA., Scott A; California National Primate Research Center, University of California, Davis, California, USA., Woodward K; Campus Veterinary Services, University of California, Davis, California, USA., Johnson C; Evergreen Aquatics, La Center, Washington, USA., Seelke AMH; Department of Neurobiology, Physiology, and Behavior, University of California, Davis, California, USA.; Department of Psychology, University of California, Davis, California, USA., Bales KL; California National Primate Research Center, University of California, Davis, California, USA.; Department of Neurobiology, Physiology, and Behavior, University of California, Davis, California, USA.; Department of Psychology, University of California, Davis, California, USA.
Jazyk: angličtina
Zdroj: Genes, brain, and behavior [Genes Brain Behav] 2022 Jun; Vol. 21 (5), pp. e12812. Date of Electronic Publication: 2022 Jun 02.
DOI: 10.1111/gbb.12812
Abstrakt: Social monogamy is a reproductive strategy characterized by pair living and defense of a common territory. Pair bonding, sometimes displayed by monogamous species, is an affective construct that includes preference for a specific partner, distress upon separation, and the ability of the partner to buffer against stress. Many seahorse species show a monogamous social structure in the wild, but their pair bond has not been well studied. We examined the gene expression of lined seahorses (Hippocampus erectus) during and after the process of pairing in the laboratory as well as color change (luminance), a potential form of social communication and behavioral synchrony between pair mates. When a seahorse of either sex was interacting with its pair mate, their changes in luminance ("brightness") were correlated and larger than when interacting with an opposite-sex stranger. At the conclusion of testing, subjects were euthanized, RNA was extracted from whole brains and analyzed via RNA sequencing. Changes in gene expression in paired males versus those that were unpaired included processes governing metabolic activity, hormones and cilia. Perhaps most interesting is the overlap in gene expression change induced by pairing in both male seahorses and male prairie voles, including components of hormone systems regulating reproduction. Because of our limited sample size, we consider our results and interpretations to be preliminary, and prompts for further exploration. Future studies will expand upon these findings and investigate the neuroendocrine and genetic basis of these behaviors.
(© 2022 The Authors. Genes, Brain and Behavior published by International Behavioural and Neural Genetics Society and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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