Endogenous control of sexual size dimorphism: Gonadal androgens have neither direct nor indirect effect on male growth in a Madagascar ground gecko (Paroedura picta)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10316062" target="_blank" >RIV/00216208:11310/15:10316062 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ygcen.2015.09.028" target="_blank" >http://dx.doi.org/10.1016/j.ygcen.2015.09.028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ygcen.2015.09.028" target="_blank" >10.1016/j.ygcen.2015.09.028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Endogenous control of sexual size dimorphism: Gonadal androgens have neither direct nor indirect effect on male growth in a Madagascar ground gecko (Paroedura picta)

Popis výsledku v původním jazyce

Changes in the effect of gonadal androgens on male growth are considered as a possible mechanism allowing shifts in magnitude and even direction of sexual size dimorphism in vertebrates, particularly squamate reptiles. Positive effects of gonadal androgens on male growth were found in several male-larger species of lizards. Contrastingly, we document that in the male-larger Madagascar ground gecko (Paroedura picta) gonadal androgens do not affect male growth under constant thermal conditions. However, the absence of a thermal gradient might prevent the potential indirect effect of gonadal androgens on growth via the influence of circulating hormones on an individual's thermoregulation and hence metabolic rate. In order to study this, we monitored the growth and body temperature of socially isolated sham-operated and castrated males of the same species in a thermal gradient. We also compared the oxygen consumption and activity between the treatment groups in the open field to test the e

Název v anglickém jazyce

Endogenous control of sexual size dimorphism: Gonadal androgens have neither direct nor indirect effect on male growth in a Madagascar ground gecko (Paroedura picta)

Popis výsledku anglicky

Changes in the effect of gonadal androgens on male growth are considered as a possible mechanism allowing shifts in magnitude and even direction of sexual size dimorphism in vertebrates, particularly squamate reptiles. Positive effects of gonadal androgens on male growth were found in several male-larger species of lizards. Contrastingly, we document that in the male-larger Madagascar ground gecko (Paroedura picta) gonadal androgens do not affect male growth under constant thermal conditions. However, the absence of a thermal gradient might prevent the potential indirect effect of gonadal androgens on growth via the influence of circulating hormones on an individual's thermoregulation and hence metabolic rate. In order to study this, we monitored the growth and body temperature of socially isolated sham-operated and castrated males of the same species in a thermal gradient. We also compared the oxygen consumption and activity between the treatment groups in the open field to test the e

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

—

Projekt

<a href="/cs/project/GP13-19767P" target="_blank" >GP13-19767P: Hormonální kontrola růstu a pohlavního dimorfismu ve velikosti těla u modelového druhu ještěra</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

General and Comparative Endocrinology

ISSN

0016-6480

e-ISSN

—

Svazek periodika

224

Číslo periodika v rámci svazku

december

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

273-277

Kód UT WoS článku

000366438400026

EID výsledku v databázi Scopus

2-s2.0-84948980102