Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites

Abstract Eusocial insects exhibit reproductive division of labor, in which only a fraction of colony members differentiate into reproductives. In termites, reproductives of both sexes are present in a colony and constantly engaged in reproduction. It has been suggested that the sex ratio of reproduc...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kohei Oguchi, Yasuhiro Sugime, Hiroyuki Shimoji, Yoshinobu Hayashi, Toru Miura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/58e6eb91eeb649bb82d1a608fc114b97
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:58e6eb91eeb649bb82d1a608fc114b97
record_format	dspace
spelling	oai:doaj.org-article:58e6eb91eeb649bb82d1a608fc114b972021-12-02T17:52:24ZMale neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites10.1038/s41598-020-66403-02045-2322https://doaj.org/article/58e6eb91eeb649bb82d1a608fc114b972020-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66403-0https://doaj.org/toc/2045-2322Abstract Eusocial insects exhibit reproductive division of labor, in which only a fraction of colony members differentiate into reproductives. In termites, reproductives of both sexes are present in a colony and constantly engaged in reproduction. It has been suggested that the sex ratio of reproductives is maintained by social interactions. The presence of reproductives is known to inhibit the additional differentiation of same-sex reproductives, while it promotes the differentiation of opposite-sex reproductives. In this study, using the damp-wood termite Hodotermopsis sjostedti, physiological effects of male/female reproductives on the differentiation of supplementary reproductives (neotenics) were examined. The results showed that the only male-neotenic condition, i.e., the presence of male neotenics in the absence of female neotenics, accelerated the neotenic differentiation from female workers (i.e., pseudergates). Under this condition, the rise of juvenile hormone (JH) titer was repressed in females, and the application of a JH analog inhibited the female neotenic differentiation, indicating that the low JH titer leads to rapid differentiation. Thus, the only male-neotenic condition that actively promotes reproductive differentiation by manipulating physiological condition of females is suggested to be a mechanism underlying sexual asymmetry in reproductive function, which may lead the female-biased sex allocation of reproductives.Kohei OguchiYasuhiro SugimeHiroyuki ShimojiYoshinobu HayashiToru MiuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kohei Oguchi Yasuhiro Sugime Hiroyuki Shimoji Yoshinobu Hayashi Toru Miura Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
description	Abstract Eusocial insects exhibit reproductive division of labor, in which only a fraction of colony members differentiate into reproductives. In termites, reproductives of both sexes are present in a colony and constantly engaged in reproduction. It has been suggested that the sex ratio of reproductives is maintained by social interactions. The presence of reproductives is known to inhibit the additional differentiation of same-sex reproductives, while it promotes the differentiation of opposite-sex reproductives. In this study, using the damp-wood termite Hodotermopsis sjostedti, physiological effects of male/female reproductives on the differentiation of supplementary reproductives (neotenics) were examined. The results showed that the only male-neotenic condition, i.e., the presence of male neotenics in the absence of female neotenics, accelerated the neotenic differentiation from female workers (i.e., pseudergates). Under this condition, the rise of juvenile hormone (JH) titer was repressed in females, and the application of a JH analog inhibited the female neotenic differentiation, indicating that the low JH titer leads to rapid differentiation. Thus, the only male-neotenic condition that actively promotes reproductive differentiation by manipulating physiological condition of females is suggested to be a mechanism underlying sexual asymmetry in reproductive function, which may lead the female-biased sex allocation of reproductives.
format	article
author	Kohei Oguchi Yasuhiro Sugime Hiroyuki Shimoji Yoshinobu Hayashi Toru Miura
author_facet	Kohei Oguchi Yasuhiro Sugime Hiroyuki Shimoji Yoshinobu Hayashi Toru Miura
author_sort	Kohei Oguchi
title	Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
title_short	Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
title_full	Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
title_fullStr	Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
title_full_unstemmed	Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites
title_sort	male neotenic reproductives accelerate additional differentiation of female reproductives by lowering jh titer in termites
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/58e6eb91eeb649bb82d1a608fc114b97
work_keys_str_mv	AT koheioguchi maleneotenicreproductivesaccelerateadditionaldifferentiationoffemalereproductivesbyloweringjhtiterintermites AT yasuhirosugime maleneotenicreproductivesaccelerateadditionaldifferentiationoffemalereproductivesbyloweringjhtiterintermites AT hiroyukishimoji maleneotenicreproductivesaccelerateadditionaldifferentiationoffemalereproductivesbyloweringjhtiterintermites AT yoshinobuhayashi maleneotenicreproductivesaccelerateadditionaldifferentiationoffemalereproductivesbyloweringjhtiterintermites AT torumiura maleneotenicreproductivesaccelerateadditionaldifferentiationoffemalereproductivesbyloweringjhtiterintermites
_version_	1718379226464256000

Male neotenic reproductives accelerate additional differentiation of female reproductives by lowering JH titer in termites

Ejemplares similares