Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)

<p>Division of labor among castes in social insect colonies increases ergonomic efficiency and colony-level fitness, and has played a key role in the ecological success of social insects. Knowledge of the factors that regulate castes is important for understanding adaptive social organization....

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Autores principales:	Yoshinobu Hayashi, Hitoshi Miyata, Osamu Kitade, Nathan Lo
Formato:	article
Lenguaje:	EN
Publicado:	Universidade Estadual de Feira de Santana 2014
Materias:	caste determination parental effect parthenogenesis social organization Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5
Acceso en línea:	https://doaj.org/article/abf3cdd44d28484280e9f47a26c2c6a2
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spelling	oai:doaj.org-article:abf3cdd44d28484280e9f47a26c2c6a22021-12-02T16:02:29ZNeotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)0361-652510.13102/sociobiology.v60i4.446-452https://doaj.org/article/abf3cdd44d28484280e9f47a26c2c6a22014-01-01T00:00:00Zhttp://periodicos.uefs.br/ojs/index.php/sociobiology/article/view/187https://doaj.org/toc/0361-6525<p>Division of labor among castes in social insect colonies increases ergonomic efficiency and colony-level fitness, and has played a key role in the ecological success of social insects. Knowledge of the factors that regulate castes is important for understanding adaptive social organization. Our previous study on the termite <em>Reticulitermes</em><em> speratus</em> demonstrated that the presence of a pair of nymphoid reproductives during development affected offspring caste ratios. In the present study, we investigated further the influence of individual neotenics on offspring caste ratios. Parthenogenetically-produced offspring were reared in worker-tended experimental colonies with the addition of different forms (nymphoid or ergatoid) and numbers of neotenics, and compared the caste ratios of the offspring between the different experimental treatments. We found that all offspring in worker-only tended colonies became nymphs, while a proportion of offspring in colonies with a single neotenic (with the exception of male ergatoids) differentiated into workers. These results show offspring caste ratios are influenced by the presence of single female ergatoids, single female and male nymphoids, while they remain unaffected by the presence of male ergatoids.</p>Yoshinobu HayashiHitoshi MiyataOsamu KitadeNathan LoUniversidade Estadual de Feira de Santanaarticlecaste determinationparental effectparthenogenesissocial organizationZoologyQL1-991EcologyQH540-549.5Natural history (General)QH1-278.5ENSociobiology, Vol 60, Iss 4, Pp 446-452 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	caste determination parental effect parthenogenesis social organization Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5
spellingShingle	caste determination parental effect parthenogenesis social organization Zoology QL1-991 Ecology QH540-549.5 Natural history (General) QH1-278.5 Yoshinobu Hayashi Hitoshi Miyata Osamu Kitade Nathan Lo Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
description	<p>Division of labor among castes in social insect colonies increases ergonomic efficiency and colony-level fitness, and has played a key role in the ecological success of social insects. Knowledge of the factors that regulate castes is important for understanding adaptive social organization. Our previous study on the termite <em>Reticulitermes</em><em> speratus</em> demonstrated that the presence of a pair of nymphoid reproductives during development affected offspring caste ratios. In the present study, we investigated further the influence of individual neotenics on offspring caste ratios. Parthenogenetically-produced offspring were reared in worker-tended experimental colonies with the addition of different forms (nymphoid or ergatoid) and numbers of neotenics, and compared the caste ratios of the offspring between the different experimental treatments. We found that all offspring in worker-only tended colonies became nymphs, while a proportion of offspring in colonies with a single neotenic (with the exception of male ergatoids) differentiated into workers. These results show offspring caste ratios are influenced by the presence of single female ergatoids, single female and male nymphoids, while they remain unaffected by the presence of male ergatoids.</p>
format	article
author	Yoshinobu Hayashi Hitoshi Miyata Osamu Kitade Nathan Lo
author_facet	Yoshinobu Hayashi Hitoshi Miyata Osamu Kitade Nathan Lo
author_sort	Yoshinobu Hayashi
title	Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
title_short	Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
title_full	Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
title_fullStr	Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
title_full_unstemmed	Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)
title_sort	neotenic reproductives influence worker caste differentiation in the termite reticulitermes speratus (isoptera; rhinotermitidae)
publisher	Universidade Estadual de Feira de Santana
publishDate	2014
url	https://doaj.org/article/abf3cdd44d28484280e9f47a26c2c6a2
work_keys_str_mv	AT yoshinobuhayashi neotenicreproductivesinfluenceworkercastedifferentiationinthetermitereticulitermessperatusisopterarhinotermitidae AT hitoshimiyata neotenicreproductivesinfluenceworkercastedifferentiationinthetermitereticulitermessperatusisopterarhinotermitidae AT osamukitade neotenicreproductivesinfluenceworkercastedifferentiationinthetermitereticulitermessperatusisopterarhinotermitidae AT nathanlo neotenicreproductivesinfluenceworkercastedifferentiationinthetermitereticulitermessperatusisopterarhinotermitidae
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Neotenic reproductives influence worker caste differentiation in the termite Reticulitermes speratus (Isoptera; Rhinotermitidae)

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