Parental Brain Through Time: function, anatomy, and molecular mechanisms in contexts DOI Creative Commons
Kumi O. Kuroda, Kansai Fukumitsu,

Takuma Kurachi

et al.

Published: Dec. 5, 2023

Mammalian parental care is highly mother-biased, prompting researchers to presume its connection female reproductive behavior and physiology, not male. However, recent findings in neurobiological studies suggest the opposite. Considering evolutionary path of mammalian care, ancestral form vertebrate appears be male-biased as living teleosts (bony fish), originated from egg guarding an extension territorial behavior. Phylogenetic analyses that basal tetrapods, harsh environments have facilitated terrestrial adaptation extensive investment females, salamander-like amniotes exhibited extended retention bodies. Molecular fossil evidence indicates synapsids later evolved into mammals already performed maternal including egg/offspring hydration Carboniferous period. Then nocturnal Jurassic mammaliaforms promoted endothermy prolonged for thermal control lactation. This situation may added nutritional gate offspring circuit balance provisioning with homeostatic needs. Combining these paleontological, comparative ecological, neuromolecular findings, we propose parenting derived MPOA neurons controlling behaviors during anamniotes, either by divergent or parallel evolution. Next, discuss another long-postulated hypothesis complex affiliative sociality among adults, group living, cooperative infant empathy, altruism, emerged primarily support growth, utilizing established mammals. These evolution-informed working hypotheses also help dissect neural basis cognitive functions

Language: Английский

Parent–offspring cannibalism throughout the animal kingdom: a review of adaptive hypotheses DOI Creative Commons
Aneesh P. H. Bose

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2022, Volume and Issue: 97(5), P. 1868 - 1885

Published: June 24, 2022

ABSTRACT Parents that kill and consume their offspring often appear to be acting against own reproductive interests. Yet parent–offspring cannibalism is common taxonomically widespread across the animal kingdom. In this review, I provide an overview of our current understanding cannibalism, which has seen a proliferation in adaptive hypotheses over past 20 years for why parents young. review four decades research into perplexing behaviour, drawing from work conducted on fishes, reptiles, insects, birds, mammals among other taxa. Many factors have been hypothesised explain nature, including poor parental energy reserves, small or large brood sizes, low uncertain parentage, high densities, additional are still being uncovered. Parent–offspring does not single predominant explanation; rather, factor, set factors, govern its expression largely taxon specific. may either all under care (full‐brood cannibalism) fraction (partial cannibalism). These forms thought benefits cannibals range circumstances, primarily by allowing allocate efforts more optimally – eating (some of) one's can redirected offspring, growth, survival, ultimately future endeavours. Thus, phenotypically plastic trait responds changing environmental, social, physiological conditions. The any given system intimately linked value young relative parents' expectations reproduction, also whether predominantly depreciable non‐depreciable. Furthermore, potential generate conflict between sexes, briefly discuss some consequences patterns mate choice. Finally, there remain many aspects behaviour where poor, highlight these topics help guide research.

Language: Английский

Citations

28
Parental brain through time: The origin and development of the neural circuit of mammalian parenting DOI Creative Commons
Kumi O. Kuroda, Kansai Fukumitsu,

Takuma Kurachi

et al.

Annals of the New York Academy of Sciences, Journal Year: 2024, Volume and Issue: 1534(1), P. 24 - 44

Published: March 1, 2024

Abstract This review consolidates current knowledge on mammalian parental care, focusing its neural mechanisms, evolutionary origins, and derivatives. Neurobiological studies have identified specific neurons in the medial preoptic area as crucial for care. Unexpectedly, these are characterized by expression of molecules signaling satiety, such calcitonin receptor BRS3, overlap with involved reproductive behaviors males but not females. A synthesis comparative ecology paleontology suggests an scenario possibly stemming from male‐biased guarding offspring basal vertebrates. The terrestrial transition tetrapods led to prolonged egg retention females emergence amniotes, skewing care toward nocturnal adaptation Mesozoic ancestors reinforced maternal lactation thermal regulation via endothermy, potentially introducing metabolic gate control parenting neurons. established may served precursor paternal cooperative mammals also fostered development group living, which further contributed empathy altruism. These evolution‐informed working hypotheses require empirical validation, yet they offer promising avenues investigate underpinnings social behaviors.

Language: Английский

Citations

5
Cellular evolution of the hypothalamic preoptic area of behaviorally divergent deer mice DOI Open Access
Jenny Chen, P. R. K. Richardson, Christopher Kirby

et al.

Published: Feb. 27, 2025

Genetic variation is known to contribute the of animal social behavior, but molecular mechanisms that lead behavioral differences are still not fully understood. Here, we investigate cellular evolution hypothalamic preoptic area (POA), a brain region plays critical role in across two sister species deer mice ( Peromyscus maniculatus and P. polionotus ) with divergent systems. These exhibit large mating parental care behavior sex. Using single-nucleus RNA-sequencing, build atlas POA for males females both species. We identify four cell types differentially abundant species, which may account based on functions these types. Our data further implicate sex-biased be important sex-specific behavior. Finally, show remarkable reduction gene expression , monogamous also exhibits reduced sexual dimorphism powerful resource how neuronal traits evolving give rise innate

Language: Английский

Citations

0
Cellular evolution of the hypothalamic preoptic area of behaviorally divergent deer mice DOI Creative Commons
Jenny Chen, P. R. K. Richardson, Christopher Kirby

et al.

eLife, Journal Year: 2025, Volume and Issue: 13

Published: April 7, 2025

Genetic variation is known to contribute the of animal social behavior, but molecular mechanisms that lead behavioral differences are still not fully understood. Here, we investigate cellular evolution hypothalamic preoptic area (POA), a brain region plays critical role in across two sister species deer mice ( Peromyscus maniculatus and P. polionotus ) with divergent systems. These exhibit large mating parental care behavior sex. Using single-nucleus RNA-sequencing, build atlas POA for males females both species. We identify four cell types differentially abundant species, which may account based on functions these types. Our data further implicate sex-biased be important sex-specific behavior. Finally, show remarkable reduction gene expression , monogamous also exhibits reduced sexual dimorphism powerful resource how neuronal traits evolving give rise innate

Language: Английский

Citations

0
Integrative approach on the diversity of nesting behaviour in fishes DOI
Eduardo Bessa, Manuela Lombardi Brandão, Eliane Gonçalves‐de‐Freitas

et al.

Fish and Fisheries, Journal Year: 2021, Volume and Issue: 23(3), P. 564 - 583

Published: Nov. 29, 2021

Abstract Nests are the key elements of reproductive repertoire several fish species. Understanding physiological aspects behind their nesting behaviour is imperative to improve our knowledge about behavioural mechanisms focusing on species conservation. Nevertheless, current still underexplored. Here, we show a synthesis based an integrative approach for understanding diversity in fish. Because nest sometimes does not involve new buildings (as birds), suggest more comprehensive definition instead structure per se. Forty families were recorded as they made nests, which sorted into six main types: bowls, burrows, foam nests plant matter and animal parts, besides clean rock surfaces. Besides spawning parental care, these also serve refuge against predators male competitors, targets sexual selection, including bowers with no care function, badges social status. We showed that, although it advantageous what Darwinian fitness concerned, requires time energy. propose evolution types functions, from ancestral bowl used derived selection functions. Physiologically, controlled by HPG axis particular brain circuits, this probably being less explored subject. Finally, highlighted changing world Anthropocene, emerges framework indicate quality aquatic environments.

Language: Английский

Citations

23
Brain areas activated during visual learning in the cichlid fish Pseudotropheus zebra DOI Creative Commons
Rafael A. Calvo, Michael Hofmann, Vera Schluessel

et al.

Brain Structure and Function, Journal Year: 2023, Volume and Issue: 228(3-4), P. 859 - 873

Published: March 15, 2023

Abstract The neural correlates of most cognitive functions in fish are unknown. This project aimed to identify brain regions involved visual learning the cichlid Pseudotropheus zebra . expression protein pS6 was measured 19 areas and compared between groups individuals subjected four different behavioral contexts (control, avoidance, trained, novelty groups). Control group were sacrificed with minimal interactions. Fish avoidance chased a net for an hour, after which they sacrificed. Individuals trained received daily training sessions associate object food reward. They day reached criterion. habituated one set stimuli, then faced change stimulus type (novelty stimulus) before three treatment showed largest activation inferior lobes tectum opticum control group. additional preoptic area, several telencephalic regions, torus semicircularis, reticular formation. that reward, lateralis, tertiary gustatory center. only area strong all nucleus diffusus situated within lobe. lobe receives prominent input from via glomerulosus but so far, nothing is known about functional details this pathway. Our study first time play important role recognition.

Language: Английский

Citations

8
Reproductive- and Social-State Plasticity of Multiple Sensory Systems in a Cichlid Fish DOI Open Access
Karen P. Maruska, Julie M. Butler

Integrative and Comparative Biology, Journal Year: 2021, Volume and Issue: 61(1), P. 249 - 268

Published: May 4, 2021

Synopsis Intra- and inter-sexual communications are vital to the survival reproductive success of animals. In species that cycle in out breeding or other physiological condition, sensory function can be modulated optimize communication at crucial times. Little is known, however, about how widespread this plasticity across taxa, whether it occurs multiple senses both sexes within a species, what potential modulatory substances substrates involved. Thus, studying modulation single provide valuable insights for understanding abilities altered detection salient signals different channels social contexts. The African cichlid fish Astatotilapia burtoni uses multimodal contexts such as courtship, territoriality, parental care shows abilities. review, we synthesize known visual, acoustic, chemosensory used A. inter- intra-specific contexts, funtion by an individual’s reproductive, metabolic, state, discuss evidence modulators may contribute changes behaviors. Sensory females primarily associated with natural functions improve courtship (visual, auditory, chemosensory, likely mechanosensory) from high-quality males reproduction. Plasticity male seems altering their ability detect status service territory ownership future opportunities. Changes classes receptors (steroids, neuropeptides, biogenic amines) occur peripheral organs (eye, inner ear, olfactory epithelium) central olfactory, auditory processing regions, suggesting complex mechanisms contributing function. This type revealed more among diverse animals than currently realized, studies should take integrative comparative approach better understand proximate ultimate modulating taxa.

Language: Английский

Citations

17
A test of the social behavior network reveals differential patterns of neural responses to social novelty in bonded, but not non-bonded, male prairie voles DOI Creative Commons
Kelly J. Wallace,

Eileen K. Chun,

Joseph R. Manns

et al.

Hormones and Behavior, Journal Year: 2023, Volume and Issue: 152, P. 105362 - 105362

Published: April 21, 2023

Language: Английский

Citations

7
Cellular evolution of the hypothalamic preoptic area of behaviorally divergent deer mice DOI Open Access
Jenny Chen, P. R. K. Richardson, Christopher Kirby

et al.

Published: Nov. 18, 2024

Genetic variation is known to contribute the of animal social behavior, but molecular mechanisms that lead behavioral differences are still not fully understood. Here, we investigate cellular evolution hypothalamic preoptic area (POA), a brain region plays critical role in across two sister species deer mice ( Peromyscus maniculatus and P. polionotus ) with divergent systems. These exhibit large mating parental care behavior sex. Using single-nucleus RNA-sequencing, build atlas POA for males females both species. We identify four cell types differentially abundant species, which may account based on functions these types. Our data further implicate sex-biased be important sex-specific behavior. Finally, show remarkable reduction gene expression , monogamous also exhibits reduced sexual dimorphism powerful resource how neuronal traits evolving give rise innate

Language: Английский

Citations

2
Behavior and neural activation patterns of non-redundant visual and acoustic signaling during courtship in an African cichlid fish DOI Open Access
Teisha King, Emily J. Ray, Brandon Tramontana

et al.

Journal of Experimental Biology, Journal Year: 2022, Volume and Issue: 225(18)

Published: Sept. 9, 2022

Animals evolve mechanisms to send and receive communication signals through multiple sensory channels during crucial behavioral contexts such as aggression reproduction. This ensures the transmission of important context-dependent that supply either same (redundant) or different (non-redundant) information receiver. Despite importance multimodal communication, there are relatively few species in which on sender receiver responses known. Further, little is known about where unimodal processed brain produce adaptive behaviors. We used African cichlid, Astatotilapia burtoni, investigate how within female a reproductive context. During courtship, dominant males low frequency sounds conjunction with visual displays (quivers) directed towards receptive gravid females. compared affiliation behaviors neural activation patterns females exposed visual, acoustic visual-acoustic from courting males. Females displayed reduced auditory-only conditions, but similar demonstrating signaling non-redundant vision dominates. Using marker cfos, we identified differential specific socially relevant nuclei between conditions distinct co-activation networks associated each Combined our previous work chemosensory signaling, propose A. burtoni represents valuable vertebrate model for studying decision making communication.

Language: Английский

Citations

9