1991/12/01 by Thane Wibbels, James J. Bull, David Crews · 5 citations
Biochemistry, Genetics and Molecular Biology · Medicine · Environmental Science · #Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities #Sperm and Testicular Function #Turtle Biology and Conservation
paper · doi:10.1002/jez.1402600311
openalex publication_date 1991/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Temperature sensitivity and gonadal differentiation were studied in a turtle, Trachemys scripta, with temperature-dependent sex determination. Sex determination was sensitive to both the duration and magnitude of incubation temperature. Temperature exerted an "all or none" effect on the ovarian or testicular nature of most gonads, but affected the length of ovaries in a graded fashion. Collectively, the results indicate that sex determination is controlled by the quantitative effect of temperature during a period beginning prior to (histologically detectable) sexual differentiation and extending to a time when initial sex specific changes are evident in the gonads.