A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew

Abstract Symbiotic relationships are widespread in nature, but the mechanisms maintaining these relationships remain to be elucidated because symbiosis incurs a maintenance cost to each participant, which lowers its reproductive rate. In host-parasite relationships, parasites are known to manipulate...

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Autores principales:	Tatsumi Kudo, Hitoshi Aonuma, Eisuke Hasegawa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/03f25f00054447a792198f11752ee776
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spelling	oai:doaj.org-article:03f25f00054447a792198f11752ee7762021-12-02T18:33:47ZA symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew10.1038/s41598-021-97666-w2045-2322https://doaj.org/article/03f25f00054447a792198f11752ee7762021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97666-whttps://doaj.org/toc/2045-2322Abstract Symbiotic relationships are widespread in nature, but the mechanisms maintaining these relationships remain to be elucidated because symbiosis incurs a maintenance cost to each participant, which lowers its reproductive rate. In host-parasite relationships, parasites are known to manipulate the host's behavior selfishly, and there is an arms race between them. Selfish manipulations also occur in symbiosis, but the effects of selfish manipulations on symbiosis are not fully understood. Here, we show that an ant-associated aphid manipulates attending ants to receive stronger protection. Aphid honeydew regurgitated by ants contains dopamine (DA). The ants showed low aggressiveness before contact with the aphids, but it rose after contact. Administration of DA to the ants increased ant aggressiveness as the concentration increased, while an antagonist of DA inhibited this effect. The other 3 amines showed no effect on aggressiveness. A previous study showed that attending ants selfishly manipulate aphids by increasing the reproductive rate of green morph to obtain high-quality honeydew. These results suggest that mutual selfish manipulation benefits both participants and is likely to strengthen symbiosis. The selfishness of each participant may contribute to sustaining this symbiosis because their selfishness increases their long-term fitness.Tatsumi KudoHitoshi AonumaEisuke HasegawaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tatsumi Kudo Hitoshi Aonuma Eisuke Hasegawa A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
description	Abstract Symbiotic relationships are widespread in nature, but the mechanisms maintaining these relationships remain to be elucidated because symbiosis incurs a maintenance cost to each participant, which lowers its reproductive rate. In host-parasite relationships, parasites are known to manipulate the host's behavior selfishly, and there is an arms race between them. Selfish manipulations also occur in symbiosis, but the effects of selfish manipulations on symbiosis are not fully understood. Here, we show that an ant-associated aphid manipulates attending ants to receive stronger protection. Aphid honeydew regurgitated by ants contains dopamine (DA). The ants showed low aggressiveness before contact with the aphids, but it rose after contact. Administration of DA to the ants increased ant aggressiveness as the concentration increased, while an antagonist of DA inhibited this effect. The other 3 amines showed no effect on aggressiveness. A previous study showed that attending ants selfishly manipulate aphids by increasing the reproductive rate of green morph to obtain high-quality honeydew. These results suggest that mutual selfish manipulation benefits both participants and is likely to strengthen symbiosis. The selfishness of each participant may contribute to sustaining this symbiosis because their selfishness increases their long-term fitness.
format	article
author	Tatsumi Kudo Hitoshi Aonuma Eisuke Hasegawa
author_facet	Tatsumi Kudo Hitoshi Aonuma Eisuke Hasegawa
author_sort	Tatsumi Kudo
title	A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
title_short	A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
title_full	A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
title_fullStr	A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
title_full_unstemmed	A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
title_sort	symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/03f25f00054447a792198f11752ee776
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A symbiotic aphid selfishly manipulates attending ants via dopamine in honeydew

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