Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps

The reproductive division of labor is a fundamental characteristic of eusociality; thus, understanding the caste determination system underlying the reproductive division of labor would shed more light on the evolution of eusociality. In this review, we summarize the factors associated with caste de...

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Main Authors: Hideto Yoshimura, Ken Sasaki
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Insects
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Online Access:https://www.mdpi.com/2075-4450/16/3/326
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author Hideto Yoshimura
Ken Sasaki
author_facet Hideto Yoshimura
Ken Sasaki
author_sort Hideto Yoshimura
collection DOAJ
description The reproductive division of labor is a fundamental characteristic of eusociality; thus, understanding the caste determination system underlying the reproductive division of labor would shed more light on the evolution of eusociality. In this review, we summarize the factors associated with caste determination in temperate <i>Polistes</i> paper wasps and focus on life histories associated with the loss or maintenance of caste plasticity during the adult stage among eusocial Hymenoptera. In many species of eusocial Hymenoptera, caste trajectories are differentiated by nutrition during the larval stages, indicating that caste plasticity is either absent or has not yet been confirmed. However, in temperate <i>Polistes</i> wasps, nutrition during the larval stage only causes biases in caste trajectory, with castes ultimately determined by environmental factors, such as day length and temperature, and colony conditions during the adult stage, indicating high caste plasticity during this stage. Therefore, morphological dimorphism and physiological differences between castes, such as in dopamine levels, have not been found in temperate <i>Polistes</i> wasps at emergence. This plasticity in temperate paper wasps could reflect the fact that females destined to be workers also have a chance to mate with males (especially early males) after emergence, leaving the possibility that they can produce daughters in the emerging year.
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spelling doaj-art-f7d9a817bcd844a0a5eca5627b41f7ab2025-08-20T03:43:31ZengMDPI AGInsects2075-44502025-03-0116332610.3390/insects16030326Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> WaspsHideto Yoshimura0Ken Sasaki1Division of Crop Rotation Research for Lowland Farming, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Morioka 020-0198, Iwate, JapanGraduate School of Agriculture, Tamagawa University, Machida 194-8610, Tokyo, JapanThe reproductive division of labor is a fundamental characteristic of eusociality; thus, understanding the caste determination system underlying the reproductive division of labor would shed more light on the evolution of eusociality. In this review, we summarize the factors associated with caste determination in temperate <i>Polistes</i> paper wasps and focus on life histories associated with the loss or maintenance of caste plasticity during the adult stage among eusocial Hymenoptera. In many species of eusocial Hymenoptera, caste trajectories are differentiated by nutrition during the larval stages, indicating that caste plasticity is either absent or has not yet been confirmed. However, in temperate <i>Polistes</i> wasps, nutrition during the larval stage only causes biases in caste trajectory, with castes ultimately determined by environmental factors, such as day length and temperature, and colony conditions during the adult stage, indicating high caste plasticity during this stage. Therefore, morphological dimorphism and physiological differences between castes, such as in dopamine levels, have not been found in temperate <i>Polistes</i> wasps at emergence. This plasticity in temperate paper wasps could reflect the fact that females destined to be workers also have a chance to mate with males (especially early males) after emergence, leaving the possibility that they can produce daughters in the emerging year.https://www.mdpi.com/2075-4450/16/3/326biogenic aminebraincaste plasticitydopamineeusocialityHymenoptera
spellingShingle Hideto Yoshimura
Ken Sasaki
Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
Insects
biogenic amine
brain
caste plasticity
dopamine
eusociality
Hymenoptera
title Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
title_full Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
title_fullStr Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
title_full_unstemmed Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
title_short Plasticity in Caste-Fate Determination During the Adult Stage in Temperate <i>Polistes</i> Wasps
title_sort plasticity in caste fate determination during the adult stage in temperate i polistes i wasps
topic biogenic amine
brain
caste plasticity
dopamine
eusociality
Hymenoptera
url https://www.mdpi.com/2075-4450/16/3/326
work_keys_str_mv AT hidetoyoshimura plasticityincastefatedeterminationduringtheadultstageintemperateipolistesiwasps
AT kensasaki plasticityincastefatedeterminationduringtheadultstageintemperateipolistesiwasps