Neuro-endocrine correlates of ovarian development and egg-laying behaviors in the primitively eusocial wasp (Polistes chinensis)

Sasaki, Kohsuke; Yamasaki, Kazuhisa; Nagao, Takashi

doi:10.1016/j.jinsphys.2007.03.006

Cited by 60 publications

(43 citation statements)

References 32 publications

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“…Biogenic amines, including DA and OA, control endocrine and exocrine secretion, contraction properties of muscles, activity of neurons and generation of motor patterns in animals (Evans, 1980;Brown and Nestler, 1985;Roeder, 1994;Monastirioti, 1999;WeiselEichler et al, 1999;Baumann et al, 2003;Scheiner et al, 2006;Sasaki et al, 2007). Certain biogenic amines are involved in learning and memory (Menzel and Müller, 1996;Mizunami et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…We used a standard mixture for quantitative determination that contained amines, precursors and metabolites (20 compounds at 100ngml DL-octopamine (OA), 3,4-dihydroxybenzylamine (DHBA, as an internal standard), 3,4-dihydroxy phenylacetic acid (DOPAC), N-acetyldopamine (Nac-DA), 3,4-dihydroxyphenethylamine (DA), 5-hydroxyindole-3-acetic acid (5-HIAA), N-acetyltyramine (Nac-TA), N-acetyl-5-hydroxytryptamine (Nac-5HT), tyramine (TA), L-tryptophan (Trp), 3-methoxytyramine (3-MTA), 5-hydroxytryptamine (5-HT) and 6-hydroxymelatonin (6-HM). Nac-OA and Nac-TA were gifts from Dr Nagao [Kanazawa Institute of Technology, Hakusan, Ishikawa prefecture, Japan, see Sasaki et al (Sasaki et al, 2007)]. All other substances were purchased from Sigma.…”

Section: Behavioral Observations Of Isolated Antsmentioning

confidence: 99%

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Social interactions influence dopamine and octopamine homeostasis in the brain of the ant Formica japonica

Wada‐Katsumata

Yamaoka

Aonuma

2011

Journal of Experimental Biology

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SUMMARYIn ants, including Formica japonica, trophallaxis and grooming are typical social behaviors shared among nestmates. After depriving ants of either food or nestmates and then providing them with either food or nestmates, a behavioral change in type and frequency of social interactions was observed. We hypothesized that starvation and isolation affected levels of brain biogenic amines including dopamine (DA) and octopamine (OA) -neuromediators modifying various insect behaviors -and tested the relationship between brain biogenic amines and social behaviors of stressed ants. Ants starved for 7days contained lower brain DA levels and they did not perform trophallaxis toward nestmates. Feeding starved ants sucrose solution re-established trophallaxis but not brain DA levels. The performance of trophallaxis induced recovery of brain DA content to the level of untreated ants. Ants that were isolated for 2days displayed markedly increased OA levels, which following nestmate interactions, returned to levels similar to those of control (non-isolated) ants and ants isolated for 1h. We conclude that: (1) starvation reduced brain DA level but had no significant effect on brain OA (trophallaxis recovered the brain DA levels), and (2) isolation increased brain OA level but had no effect on brain DA (trophallaxis and grooming events recovered the brain OA levels). We suggest that social interactions with nestmates influenced brain biogenic amine homeostasis in stressed F. japonica.

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Section: Discussionmentioning

confidence: 99%

Section: Behavioral Observations Of Isolated Antsmentioning

confidence: 99%

Social interactions influence dopamine and octopamine homeostasis in the brain of the ant Formica japonica

Wada‐Katsumata

Yamaoka

Aonuma

2011

Journal of Experimental Biology

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“…In adult social Hymenoptera, however, gonadotropic effects of JH are only supported in ancestral lineages (bumblebee, Bloch et al, 1996;paper wasp, Barth et al, 1975;Bohm, 1972) and not in the derived lineages such as honeybees (Robinson et al, 1991(Robinson et al, , 1992 and several ant species (Diacamma, Sommer et al, 1993;Streblognathus, Brent et al, 2006;Harpegnathos, Penick et al, 2011;Solenopsis, Brent and Vargo, 2003), implying that the gonadotropic function of JH is lost in derived lineages (Hartfelder, 2000). In contrast to JH, data are accumulating to support the commonness of positive associations between brain dopamine and reproductive status across the lineages ( paper wasp, Sasaki et al, 2007;bumblebee, Bloch et al, 2000;honeybee, Harris and Woodring, 1995;ants, Penick et al, 2014 and this study). As gonadotropic effects of dopamine are also found in solitary insects (fruit fly, Neckameyer, 1996;Pendleton et al, 1996;cockroach, Pastor et al, 1991), we speculate that the gonadotropic function of dopamine is ancestral.…”

Section: Conserved Function Of Dopamine In Reproductive Differentiationmentioning

confidence: 99%

“…As gonadotropic effects of dopamine are also found in solitary insects (fruit fly, Neckameyer, 1996;Pendleton et al, 1996;cockroach, Pastor et al, 1991), we speculate that the gonadotropic function of dopamine is ancestral. The gonadotropic function of dopamine may have been recruited to the dominance-based physiological regulation at the primitive phase of eusocial evolution, and is now conserved in primitive and derived species to complement the reproductive function of JH (Sasaki et al, 2007).…”

Section: Conserved Function Of Dopamine In Reproductive Differentiationmentioning

confidence: 99%

“…In Polistes paper wasps and the worker-totipotent ant Harpegnathos saltator, brain dopamine levels are elevated in dominant individuals (Sasaki et al, 2007;Penick et al, 2014), whereas brain octopamine levels are known to be elevated in dominants in bumblebee (Bloch et al, 2000) and the queenless ant Streblognathus (Cuvillier- Hot and Lenoir, 2006). In addition to aggressiveness, the positive correlation between dopamine levels and ovarian activity is observed in bees, wasps and ants (Sasaki et al, 2007;Bloch et al, 2000;Harris and Woodring, 1995;Penick et al, 2014). Besides dominance hierarchy, biogenic amines are also an important mediator of the age-dependent division of labor (Shultz and Robinson, 1999;Kahmi and Traniello, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Social dominance and reproductive differentiation mediated by dopaminergic signaling in a queenless ant

Okada

Sasaki

Miyazaki

et al. 2015

Journal of Experimental Biology

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In social Hymenoptera with no morphological caste, a dominant female becomes an egg layer, whereas subordinates become sterile helpers. The physiological mechanism that links dominance rank and fecundity is an essential part of the emergence of sterile females, which reflects the primitive phase of eusociality. Recent studies suggest that brain biogenic amines are correlated with the ranks in dominance hierarchy. However, the actual causality between aminergic systems and phenotype (i.e. fecundity and aggressiveness) is largely unknown due to the pleiotropic functions of amines (e.g. age-dependent polyethism) and the scarcity of manipulation experiments. To clarify the causality among dominance ranks, amine levels and phenotypes, we examined the dynamics of the aminergic system during the ontogeny of dominance hierarchy in the queenless ant Diacamma sp., which undergoes rapid physiological differentiation based on dominance interactions. Brain dopamine levels differed between dominants and subordinates at day 7 after eclosion, although they did not differ at day 1, reflecting fecundity but not aggressiveness. Topical applications of dopamine to the subordinate workers induced oocyte growth but did not induce aggressiveness, suggesting the gonadotropic effect of dopamine. Additionally, dopamine receptor transcripts (dopr1 and dopr2) were elevated in the gaster fat body of dominant females, suggesting that the fat body is a potential target of neurohormonal dopamine. Based on this evidence, we suggest that brain dopamine levels are elevated in dominants as a result of hierarchy formation, and differences in dopamine levels cause the reproductive differentiation, probably via stimulation of the fat body.

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Age‐ and subcaste‐related patterns of serotonergic immunoreactivity in the optic lobes of the ant Pheidole dentata

Seid

Goode

et al. 2008

Developmental Neurobiology

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Serotonin, a biogenic amine known to be a neuromodulator of insect behavior, has recently been associated with age-related patterns of task performance in the ant Pheidole dentata. We identified worker age- and subcaste-related patterns of serotonergic activity within the optic lobes of the P. dentata brain to further examine its relationship to polyethism. We found strong immunoreactivity in the optic lobes of the brains of both minor and major workers. Serotonergic cell bodies in the optic lobes increased significantly in number as major and minor workers matured. Old major workers had greater numbers of serotonergic cell bodies than minors of a similar age. This age-related increase in serotonergic immunoreactivity, as well as the presence of diffuse serotonin networks in the mushroom bodies, antennal lobes, and central complex, occurs concomitantly with an increase in the size of worker task repertoires. Our results suggest that serotonin is associated with the development of the visual system, enabling the detection of task-related stimuli outside the nest, thus playing a significant role in worker behavioral development and colony-wide division of labor.

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Neuro-endocrine correlates of ovarian development and egg-laying behaviors in the primitively eusocial wasp (Polistes chinensis)

Cited by 60 publications

References 32 publications

Social interactions influence dopamine and octopamine homeostasis in the brain of the ant Formica japonica

Social interactions influence dopamine and octopamine homeostasis in the brain of the ant Formica japonica

Social dominance and reproductive differentiation mediated by dopaminergic signaling in a queenless ant

Age‐ and subcaste‐related patterns of serotonergic immunoreactivity in the optic lobes of the ant Pheidole dentata

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