Effect of Hormonal Manipulation on Sociosexual Behavior in Adult Female Leopard Geckos (Eublepharis macularius), a Species with Temperature-Dependent Sex Determination

1995 ◽  
Vol 29 (4) ◽  
pp. 458-473 ◽  
Author(s):  
Deborah Lynne Flores ◽  
David Crews
1993 ◽  
Vol 265 (6) ◽  
pp. 679-683 ◽  
Author(s):  
Brian E. Viets ◽  
Alan Tousignant ◽  
Michael A. Ewert ◽  
Craig E. Nelson ◽  
David Crews

2008 ◽  
Vol 95 (12) ◽  
pp. 1137-1142 ◽  
Author(s):  
Victoria Huang ◽  
Jon T. Sakata ◽  
Turk Rhen ◽  
Patricia Coomber ◽  
Sarah Simmonds ◽  
...  

1987 ◽  
Vol 65 (6) ◽  
pp. 1421-1424 ◽  
Author(s):  
J. J. Bull

In many reptiles, sex is determined by the incubation temperature of the egg. Studies of this phenomenon have usually diagnosed sex from gonads of hatchlings. The present study establishes the validity of this procedure in a lizard with temperature-dependent sex determination by diagnosing gonadal sex in hatchling leopard geckoes (Eublepharis macularius) and comparing these diagnoses with the sexes of the same animals as adults or subadults. The diagnosis of sex soon after hatching agreed with the subsequent diagnosis in all of the 96 animals studied. In a separate experiment, 29 eggs were divided between a male-producing and a female-producing treatment. Adult–subadult sex was significantly associated with temperature, indicating that temperature determined sex, and excluding for the first time the joint possibilities of differential mortality and (or) sex reversal after hatching. Previous fundamental assumptions about the nature of temperature-dependent sex determination in reptiles are consequently well established.


2021 ◽  
pp. 1-9
Author(s):  
Horacio Merchant-Larios ◽  
Verónica Díaz-Hernández ◽  
Diego Cortez

The discovery in mammals that fetal testes are required in order to develop the male phenotype inspired research efforts to elucidate the mechanisms underlying gonadal sex determination and differentiation in vertebrates. A pioneer work in 1966 that demonstrated the influence of incubation temperature on sexual phenotype in some reptilian species triggered great interest in the environment’s role as a modulator of plasticity in sex determination. Several chelonian species have been used as animal models to test hypotheses concerning the mechanisms involved in temperature-dependent sex determination (TSD). This brief review intends to outline the history of scientific efforts that corroborate our current understanding of the state-of-the-art in TSD using chelonian species as a reference.


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