Incubation temperature and gonadal sex affect growth and physiology in the leopard gecko (Eublepharis macularius), a lizard with temperature-dependent sex determination

1995 ◽  
Vol 224 (2) ◽  
pp. 159-170 ◽  
Author(s):  
Alan Tousignant ◽  
David Crews
Keyword(s):  
Sex Determination ◽  
Incubation Temperature ◽  
Temperature Dependent ◽  
Eublepharis Macularius ◽  
Leopard Gecko

Temperature-dependent sex determination in the leopard gecko,Eublepharis macularius

1993 ◽  
Vol 265 (6) ◽  
pp. 679-683 ◽  
Author(s):  
Brian E. Viets ◽  
Alan Tousignant ◽  
Michael A. Ewert ◽  
Craig E. Nelson ◽  
David Crews
Keyword(s):  
Sex Determination ◽  
Temperature Dependent ◽  
Eublepharis Macularius ◽  
Leopard Gecko

Constraints on temperature-dependent sex determination in the leopard gecko (Eublepharis macularius): response to Kratochvil et al.

2008 ◽  
Vol 95 (12) ◽  
pp. 1137-1142 ◽  
Author(s):  
Victoria Huang ◽  
Jon T. Sakata ◽  
Turk Rhen ◽  
Patricia Coomber ◽  
Sarah Simmonds ◽  
...  
Keyword(s):  
Sex Determination ◽  
Temperature Dependent ◽  
Eublepharis Macularius ◽  
Leopard Gecko

Temperature-dependent sex determination in reptiles: validity of sex diagnosis in hatchling lizards

1987 ◽  
Vol 65 (6) ◽  
pp. 1421-1424 ◽  
Author(s):  
J. J. Bull
Keyword(s):  
Sex Determination ◽  
Incubation Temperature ◽  
Sex Reversal ◽  
Separate Experiment ◽  
Differential Mortality ◽  
Temperature Dependent ◽  
Sex Diagnosis ◽  
Eublepharis Macularius ◽  
First Time

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.

scholarly journals Molecular and Cellular Mechanisms Underlying Temperature-Dependent Sex Determination in Turtles

2021 ◽  
pp. 1-9
Author(s):  
Horacio Merchant-Larios ◽  
Verónica Díaz-Hernández ◽  
Diego Cortez
Keyword(s):  
Animal Models ◽  
Sex Determination ◽  
Incubation Temperature ◽  
State Of The Art ◽  
Current Understanding ◽  
Temperature Dependent ◽  
Cellular Mechanisms ◽  
Male Phenotype ◽  
History Of ◽  
Reptilian Species

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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