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**Ingo** · 04.11.2005, 09:17

Re: temperaturabhängige Geschlechtsausprägung

Ein Review..
hmm

Literatur gibt es ja viel.

Hier ein paar Reviews unterschiedlichen Alters:

Vielleicht reicht Dir ja bereits eines der ersten beiden, ich denke, diegehen in die Richtung, die Du suchst:

Pieau C, Dorizzi M.(2004)
Oestrogens and temperature-dependent sex determination in reptiles: all is in the gonads.
J Endocrinol.181(3):367-77.

Pieau C, Dorizzi M, Richard-Mercier N.(2001)
Temperature-dependent sex determination and gonadal differentiation in reptiles.
EXS;(91):117-41.

Pieau C, Dorizzi M, Richard-Mercier N.(1999)
Temperature-dependent sex determination and gonadal differentiation in reptiles.
Cell Mol Life Sci.55(6-7):887-900

(Wibbels T, Cowan J, LeBoeuf R.1998)
Temperature-dependent sex determination in the red-eared slider turtle, Trachemys scripta.
J Exp Zool;281(5):409-16

Ein paar informative Einzelpaper:

Desvages G, Girondot M, Pieau C. (1993)
Sensitive stages for the effects of temperature on gonadal aromatase activity in embryos of the marine turtle Dermochelys coriacea.
Gen Comp Endocrinol;92(1):54-61.

Smith CA, Joss JM.(1994)
Steroidogenic enzyme activity and ovarian differentiation in the saltwater crocodile, Crocodylus porosus.
Gen Comp Endocrinol.93(2):232-45.

Crews D, Fleming A, Willingham E, Baldwin R, Skipper JK.(2001)
Role of steroidogenic factor 1 and aromatase in temperature-dependent sex determination in the red-eared slider turtle.
J Exp Zool;290(6):597-606.

Belaid B, Cong HN, Devilliers G, Richard-Mercier N, Pieau C, Dorizzi M.(2004)
Lymphoid aggregates in gonads of embryos, hatchlings, and young of turtles with temperature-dependent sex determination.
J Exp Zoolog A Comp Exp Biol;301(2):160-8.

Willingham E, Baldwin R, Skipper JK, Crews D.(2000)
Aromatase activity during embryogenesis in the brain and adrenal-kidney-gonad of the red-eared slider turtle, a species with temperature-dependent sex determination.
Gen Comp Endocrinol;119(2):202-7.

Jeyasuria P, Place AR.(1997)
Temperature-dependent aromatase expression in developing diamondback terrapin (Malaclemys terrapin) embryos.
J Steroid Biochem Mol Biol;61(3-6):415-25.

Conley AJ, Elf P, Corbin CJ, Dubowsky S, Fivizzani A, Lang JW.(1997)
Yolk steroids decline during sexual differentiation in the alligator.
Gen Comp Endocrinol.107(2):191-200.

Interessante Manipulationen:

Wibbels T, Crews D.(1994)
Putative aromatase inhibitor induces male sex determination in a female unisexual lizard and in a turtle with temperature-dependent sex determination.
J Endocrinol;141(2):295-9.

Rhen T, Lang JW.(1994)
Temperature-dependent sex determination in the snapping turtle: manipulation of the embryonic sex steroid environment.
Gen Comp Endocrinol;96(2):243-54.

Dorizzi M, Richard-Mercier N, Pieau C.(1996)
The ovary retains male potential after the thermosensitive period for sex determination in the turtle Emys orbicularis.
Differentiation.60(4):193-201.

Richard-Mercier N, Dorizzi M, Desvages G, Girondot M, Pieau C(1995)
Endocrine sex reversal of gonads by the aromatase inhibitor Letrozole (CGS 20267) in Emys orbicularis, a turtle with temperature-dependent sex determination.
Gen Comp Endocrinol.100(3):314-26.

Aktuelles und umfassendes gibts vor allem aus dem Bereich Fische.
Die hormonellen Vorgänge und vor allem die Rolle der Aromatase sind bei TDSD zumindest ähnlich.

Kroon FJ, Munday PL, Westcott DA, Hobbs JP, Liley NR.(2005)
Aromatase pathway mediates sex change in each direction.
Proc Biol Sci;272(1570):1399-405.

Piferrer F, Blazquez M, Navarro L, Gonzalez A.(2005)
Genetic, endocrine, and environmental components of sex determination and differentiation in the European sea bass (Dicentrarchus labrax L.).
Gen Comp Endocrinol;142(1-2):102-10.

Gardner L, Anderson T, Place AR, Dixon B, Elizur A.(2005)
Sex change strategy and the aromatase genes.
J Steroid Biochem Mol Biol. 94(5):395-404.

Vielleicht ist da ja was für Dich dabei

**SHzac** · 24.11.2005, 12:09

Re: temperaturabhängige Geschlechtsausprägung

Tausend Dank!!! ...wenn auch etwas spät...

Ich schau die papers mal durch.

Grüße

Sacha

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temperaturabhängige Geschlechtsausprägung

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