Hormonal components of altered developmental pathways in the annual killifish, Austrofundulus limnaeus

Hormonal components of altered developmental pathways in the annual killifish, Austrofundulus limnaeus

Highlights ► Escape embryo production and estradiol-17β (E2) levels decline with female age. ► The E2 to testosterone (T) ratio is correlated with escape embryo production. ► Embryonic E2 treatment induces the escape trajectory and increases androstenedione. ► E2 levels decline faster through early...

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Veröffentlicht in:General and comparative endocrinology 2011-11, Vol.174 (2), p.166-174
Hauptverfasser: Pri-Tal, Benjamin M, Blue, Steven, Pau, Francis K.-Y, Podrabsky, Jason E
Format: Artikel
Sprache:eng
Schlagworte:
adults
androstenedione
Androstenedione - metabolism
Animals
Aromatase
Austrofundulus limnaeus
Developmental biology
Diapause
early development
eggs
Embryo, Nonmammalian - drug effects
Embryo, Nonmammalian - metabolism
Endocrinology
Endocrinology & Metabolism
Estradiol - metabolism
Estradiol - pharmacology
Female
Fish
Freshwater
Fundulidae - metabolism
hormone metabolism
longevity
Male
steroid hormones
Steroids
testosterone
Testosterone - metabolism
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Zusammenfassung:Highlights ► Escape embryo production and estradiol-17β (E2) levels decline with female age. ► The E2 to testosterone (T) ratio is correlated with escape embryo production. ► Embryonic E2 treatment induces the escape trajectory and increases androstenedione. ► E2 levels decline faster through early development in escape embryos. ► E2 synthesis is initiated earlier in development in escape embryos.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2011.08.016