Embryonic sex steroid hormones accumulate in the eggshell of loggerhead sea turtle ( Caretta caretta )

Highlights • Steroid hormones accumulated in the eggshell of loggerhead sea turtle can be measured. • Concentrations of steroids in the plasma were correlated with contents of those in the eggshell. • Contents of estradiol-17β in the eggshell positively correlated with mean incubation temperature du...

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Veröffentlicht in:	General and comparative endocrinology 2015-12, Vol.224, p.11-17
Hauptverfasser:	Kobayashi, Shohei, Saito, Yoshimichi, Osawa, Akihisa, Katsumata, Etsuko, Karaki, Isuke, Nagaoka, Kentaro, Taya, Kazuyoshi, Watanabe, Gen
Format:	Artikel
Sprache:	eng
Schlagworte:	Accumulation Animals Caretta caretta Eggshell Endocrinology & Metabolism Estradiol - blood Estradiol-17β Female Gonadal Steroid Hormones - blood Loggerhead sea turtle Male Radioimmunoassay Sex Determination Analysis - methods Sex identification Testosterone Testosterone - blood Turtles - embryology Turtles - physiology
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Beschreibung
Zusammenfassung:	Highlights • Steroid hormones accumulated in the eggshell of loggerhead sea turtle can be measured. • Concentrations of steroids in the plasma were correlated with contents of those in the eggshell. • Contents of estradiol-17β in the eggshell positively correlated with mean incubation temperature during thermosensitive period. • Contents of testosterone in the eggshell were not correlated with mean incubation temperature during thermosensitive period. • Contents of estradiol-17β in the eggshell may differ between the sexes.
ISSN:	0016-6480 1095-6840
DOI:	10.1016/j.ygcen.2015.05.013