Sexual dimorphism of diapause regulation in the hemipteran bug Pyrrhocoris apterus

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00551265" target="_blank" >RIV/60077344:_____/22:00551265 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/22:43904671

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0965174822000030/pdfft?md5=ec8fe33e9745d8f000603e6ea7dc47da&pid=1-s2.0-S0965174822000030-main.pdf" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0965174822000030/pdfft?md5=ec8fe33e9745d8f000603e6ea7dc47da&pid=1-s2.0-S0965174822000030-main.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ibmb.2022.103721" target="_blank" >10.1016/j.ibmb.2022.103721</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sexual dimorphism of diapause regulation in the hemipteran bug Pyrrhocoris apterus

Popis výsledku v původním jazyce

Diapause is one of the major strategies for insects to prepare for and survive harsh seasons. In females, the absence of juvenile hormone (JH) is a hallmark of adult reproductive diapause, a developmental arrest, which is much less characterized in males. Here we show that juvenile hormone III skipped bisepoxide (JHSB3) titers in hemolymph remarkably differ between reproductive males and females of the linden bug Pyrrhocoris apterus, whereas no JH was detected in diapausing adults of both sexes. Like in females, ectopic application of JH mimic effectively terminated male diapause through the canonical JH receptor components, Methoprene-tolerant and Taiman. In contrast to females, long photoperiod induced reproduction even in males with silenced JH reception or in males with removed corpus allatum (CA), the JH-producing gland. JHSB3 was detected in the accessory glands (MAG) of reproductive males, unexpectedly, even in males without CA. If there is a source of JHSB3 outside CA or a long-term storage of JHSB3 in MAGs remains to be elucidated. These sex-related idiosyncrasies are further manifested in different dynamics of diapause termination in P. apterus by low temperature. We would like to propose that this sexual dimorphism of diapause regulation might be explained by the different reproductive costs for each sex.

Název v anglickém jazyce

Sexual dimorphism of diapause regulation in the hemipteran bug Pyrrhocoris apterus

Popis výsledku anglicky

Diapause is one of the major strategies for insects to prepare for and survive harsh seasons. In females, the absence of juvenile hormone (JH) is a hallmark of adult reproductive diapause, a developmental arrest, which is much less characterized in males. Here we show that juvenile hormone III skipped bisepoxide (JHSB3) titers in hemolymph remarkably differ between reproductive males and females of the linden bug Pyrrhocoris apterus, whereas no JH was detected in diapausing adults of both sexes. Like in females, ectopic application of JH mimic effectively terminated male diapause through the canonical JH receptor components, Methoprene-tolerant and Taiman. In contrast to females, long photoperiod induced reproduction even in males with silenced JH reception or in males with removed corpus allatum (CA), the JH-producing gland. JHSB3 was detected in the accessory glands (MAG) of reproductive males, unexpectedly, even in males without CA. If there is a source of JHSB3 outside CA or a long-term storage of JHSB3 in MAGs remains to be elucidated. These sex-related idiosyncrasies are further manifested in different dynamics of diapause termination in P. apterus by low temperature. We would like to propose that this sexual dimorphism of diapause regulation might be explained by the different reproductive costs for each sex.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Insect Biochemistry and Molecular Biology

ISSN

0965-1748

e-ISSN

1879-0240

Svazek periodika

142

Číslo periodika v rámci svazku

MAR 01

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

103721

Kód UT WoS článku

000780386200006

EID výsledku v databázi Scopus

2-s2.0-85122504082