Teleost maturation-inducing hormone, 17,20β-dihydroxypregn-4-en-3-one, peaks after spawning in Tinca tinca

Highlights ► Peak production of 17,20β-P is not associated with spawning time in T. tinca. ► 17,20β,21-P did not show the same pattern as 17,20β-P in adult T. tinca. ► 17,20β-P peak is not associated with the initiation of gonadal meiosis in T. tinca. ► The dogma of elevated 17,20β-P levels with mat...

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Veröffentlicht in:	General and comparative endocrinology 2011-06, Vol.172 (2), p.234-242
Hauptverfasser:	Antonopoulou, Efthimia, Tsikliras, Athanassios C, Kocour, Martin, Žlábek, Vladimir, Flajšhans, Martin, Gela, David, Piačková, Veronika, Scott, Alexander P
Format:	Artikel
Sprache:	eng
Schlagworte:	17,20β-Dihydroxypregn-4-en-3-one Animals autumn Cyprinidae - blood Cyprinidae - physiology Endocrinology & Metabolism estradiol Estradiol - blood Female females fish Freshwater Hydroxyprogesterones - analysis Hydroxyprogesterones - blood Male males Maturation meiosis Reproduction - physiology Seasons Sexual Maturation - physiology spawning spermatocytes Steroid Teleost Teleostei Tench testes Testosterone - analogs & derivatives Testosterone - blood Tinca tinca Up-Regulation
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Zusammenfassung:	Highlights ► Peak production of 17,20β-P is not associated with spawning time in T. tinca. ► 17,20β,21-P did not show the same pattern as 17,20β-P in adult T. tinca. ► 17,20β-P peak is not associated with the initiation of gonadal meiosis in T. tinca. ► The dogma of elevated 17,20β-P levels with maturation-spermiation is challenged.
ISSN:	0016-6480 1095-6840
DOI:	10.1016/j.ygcen.2011.03.008