Catecholaminergic Innervation of Central and Peripheral Auditory Circuitry Varies with Reproductive State in Female Midshipman Fish, Porichthys notatus

PLoS ONE, Journal Year: 2015, Volume and Issue: 10(4), P. e0121914 - e0121914

Published: April 7, 2015

In seasonal breeding vertebrates, hormone regulation of catecholamines, which include dopamine and noradrenaline, may function, in part, to modulate behavioral responses conspecific vocalizations. However, natural changes catecholamine innervation auditory nuclei is largely unexplored, especially the peripheral system, where encoding social acoustic stimuli initiated. The plainfin midshipman fish, Porichthys notatus, has proven be an excellent model explore mechanisms underlying plasticity related reproductive behavior. Recently, we demonstrated robust catecholaminergic (CA) throughout system midshipman. Most notably, dopaminergic neurons diencephalon have widespread projections circuitry including direct saccule, main endorgan hearing, cholinergic octavolateralis efferent nucleus (OE) also projects inner ear. Here, tested hypothesis that gravid, summer females show differential CA compared non-reproductive winter females. We utilized quantitative immunofluorescence measure tyrosine hydroxylase immunoreactive (TH-ir) fiber density central sensory epithelium saccule. Reproductive exhibited greater TH-ir two forebrain areas thalamus on somata dendrites OE. contrast, had numbers terminals saccule a region hindbrain as well preoptic area. These data provide evidence catecholamines seasonally sensitivity ear and, turn, appropriate response signals.

Language: Английский

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Attention and Motivated Response to Simulated Male Advertisement Call Activates Forebrain Dopaminergic and Social Decision-Making Network Nuclei in Female Midshipman Fish

Integrative and Comparative Biology, Journal Year: 2017, Volume and Issue: 57(4), P. 820 - 834

Published: May 24, 2017

Little is known regarding the coordination of audition with decision-making and subsequent motor responses that initiate social behavior including mate localization during courtship. Using midshipman fish model, we tested hypothesis time spent by females attending responding to advertisement call correlated activation a specific subset catecholaminergic (CA) network (SDM) nuclei underlying auditory- driven sexual motivation. In addition, quantified relationship neural between CA SDM in all responders goal providing map functional connectivity circuitry motivated state responsive acoustic cues localization. order make baseline qualitative comparison this brain unmotivated females, made similar correlative who were unresponsive playback. Our results support an important role for dopaminergic neurons periventricular posterior tuberculum ventral thalamus, putative A11 A13 tetrapod homologues, respectively, as well parvocellular preoptic area dorsomedial telencephalon, (laterobasal amygdala homologue) auditory attention appetitive fishes. These findings may also offer insights into function these highly conserved context auditory-driven reproductive across vertebrates.

Language: Английский

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Galanin immunoreactivity is sexually polymorphic in neuroendocrine and vocal‐acoustic systems in a teleost fish

The Journal of Comparative Neurology, Journal Year: 2019, Volume and Issue: 528(3), P. 433 - 452

Published: Aug. 30, 2019

Abstract Galanin is a peptide that regulates pituitary hormone release, feeding, and reproductive parental care behaviors. In teleost fish, increased galanin expression associated with territorial, reproductively active males. Prior transcriptome studies of the plainfin midshipman ( Porichthys notatus ), highly vocal fish two male morphs follow alternative tactics, show upregulated in preoptic area‐anterior hypothalamus (POA‐AH) nest‐holding, courting type I males during spawning compared to cuckolding II Here, we investigate possible differences immunoreactivity brain both females focus on vocal‐acoustic neuroendocrine networks. We find differ dramatically from number galanin‐expressing somata distribution fibers, especially brainstem nuclei other sensory integration sites also differ, though less extensively, between morphs. Double labeling shows primarily separate populations POA‐AH neurons express nonapeptides arginine‐vasotocin or isotocin, homologues mammalian arginine vasopressin oxytocin are broadly implicated neural mechanisms vertebrate social behavior including morph‐specific actions neurophysiology midshipman. Finally, report small population coexpress neurotransmitter γ‐aminobutyric acid. Together, results indicate likely modulate activity at broad scale, targeted effects motor, systems; unique nonapeptide‐expressing populations; play role male‐specific

Language: Английский

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Organization of the catecholaminergic systems in the brain of lungfishes, the closest living relatives of terrestrial vertebrates

The Journal of Comparative Neurology, Journal Year: 2017, Volume and Issue: 525(14), P. 3083 - 3109

Published: June 26, 2017

Abstract Lungfishes are a group of sarcopterygian fishes currently considered the closest living relatives tetrapods, and represent an interesting for study evolutionary traits in transition from to tetrapods. Catecholaminergic systems brain among most carefully analyzed neurotransmitter vertebrate groups. Their organization shows major shared characteristics, although particular each class have also been found, primarily between anamniotes amniotes. Given relevance lungfishes terms, present provides first comprehensive detailed map catecholaminergic structures two representative species lungfishes, African lungfish ( Protopterus dolloi ) Australian Neoceratodus forsteri ), as revealed by immunohistochemistry. Distinct groups cells were observed olfactory bulb, pallium, preoptic area telencephalon, subpallium is devoid these cells. Hypothalamic diencephalic detected and, particular, dopaminergic nucleus periventricular organ was evidenced with dopamine antibodies but not anti‐tyrosine hydroxylase. A well developed mesostriatal system formed conspicuous midbrain tegmentum profuse innervation subpallium. Comparison results those other classes vertebrates numerous common highlights features different actinopterygian that resemble amphibians

Language: Английский

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Sex Steroid-Dependent Modulation of Acoustic Communication Systems in Fishes

Animal signals and communication, Journal Year: 2015, Volume and Issue: unknown, P. 207 - 233

Published: Jan. 1, 2015

Language: Английский

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Hormone-Dependent Plasticity of Auditory Systems in Fishes

Springer handbook of auditory research, Journal Year: 2016, Volume and Issue: unknown, P. 15 - 51

Published: Jan. 1, 2016

Language: Английский

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Dopamine injections to the midbrain periaqueductal gray inhibit vocal-motor production in a teleost fish

Physiology & Behavior, Journal Year: 2023, Volume and Issue: 263, P. 114131 - 114131

Published: Feb. 14, 2023

Across vertebrates, the midbrain periaqueductal gray (PAG) plays a critical role in social and vocal behavior. Dopaminergic neurotransmission also modulates these behaviors, dopaminergic innervation of PAG has been well documented. Nonetheless, potential dopamine shaping production at level is not understood. Here, we tested hypothesis that PAG, using well-characterized vertebrate model system for study communication, plainfin midshipman fish, Porichthys notatus. We found focal injections to rapidly reversibly inhibited triggered by stimulation known vocal-motor structures preoptic area / anterior hypothalamus. While output, it did alter behaviorally-relevant parameters this such as vocalization duration frequency. Dopamine-induced inhibition was prevented combined blockade D1- D2-like receptors but unaffected isolated either D1-receptors or D2-receptors. Our results suggest neuromodulation may inhibit natural behavior, courtship and/or agonistic contexts.

Language: Английский

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Connectivity and ultrastructure of dopaminergic innervation of the inner ear and auditory efferent system of a vocal fish

The Journal of Comparative Neurology, Journal Year: 2017, Volume and Issue: 525(9), P. 2090 - 2108

Published: Jan. 24, 2017

Abstract Dopamine (DA) is a conserved modulator of vertebrate neural circuitry, yet our knowledge its role in peripheral auditory processing limited to mammals. The present study combines immunohistochemistry, tract tracing, and electron microscopy investigate the origin synaptic characteristics DA fibers innervating inner ear hindbrain efferent nucleus plainfin midshipman, vocal fish that relies upon detection mate calls for reproductive success. We identify cell group diencephalon as common source innervation both saccule, main hearing endorgan ear. show terminals saccule contain vesicles but transmitter release appears paracrine nature, due apparent lack contacts. In contrast, hindbrain, form traditional contacts with neuronal bodies dendrites, well unlabeled axon terminals, which, turn, inhibitory‐like synapses on somata. Our results suggest distinct functional brain‐derived direct indirect modulation system nonmammalian vertebrate.

Language: Английский

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Inhibitory and modulatory inputs to the vocal central pattern generator of a teleost fish

The Journal of Comparative Neurology, Journal Year: 2018, Volume and Issue: 526(8), P. 1368 - 1388

Published: Feb. 9, 2018

Vocalization is a behavioral feature that shared among multiple vertebrate lineages, including fish. The temporal patterning of vocal communication signals set, in part, by central pattern generators (CPGs). Toadfishes are well-established models for CPG coding vocalization at the hindbrain level. comprises three topographically separate nuclei: pre-pacemaker, pacemaker, motor. While connectivity between these nuclei well understood, their neurochemical profile remains largely unexplored. highly Gulf toadfish, Opsanus beta, has been subject previous behavioral, neuroanatomical and neurophysiological studies. Combining transneuronal neurobiotin-labeling with immunohistochemistry, we map distribution inhibitory neurotransmitters neuromodulators along gap junctions this species. Dense GABAergic glycinergic label found throughout CPG, labeled somata immediately adjacent to or within nuclei, distinct subset pacemaker neurons co-labeled neurobiotin glycine. Neurobiotin-labeled motor densely junction protein connexin 35/36, supporting hypothesis occurs, least via coupling. Serotonergic catecholaminergic also robust entire additional cholinergic prepacemaker nuclei. Likely sources putative modulatory inputs neurons. Together prior investigations, results reveal potential mechanisms generating classes social context-dependent vocalizations widely divergent spectral properties.

Language: Английский

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Neural, Hormonal, and Genetic Mechanisms of Alternative Reproductive Tactics: Vocal Fish as Model Systems

Elsevier eBooks, Journal Year: 2016, Volume and Issue: unknown, P. 47 - 68

Published: Nov. 29, 2016

Language: Английский

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