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ABSTRACT Gonadal differentiation in amniote vertebrates is controlled by one of two mechanisms: genotypic sex determination (GSD) or environmental sex determination (ESD)1. After

differentiation the fetal gonad produces sex steroid hormones which govern the development of other components of sexuality2,3. Thus, the primary sex determiner is thought to operate solely

as a trigger that initiates a cascade of events culminating in adult sex differences. In the leopard gecko (_Eublephans macularius_), gonadal and morphological sex is determined by

incubation temperature, with relatively 'hot' temperatures (32 °C) resulting in mostly male offspring and relatively 'cold' temperatures (26 °C) resulting in only female

offspring4,5. We report here that the reproductive behaviour and endocrine physiology of an adult is influenced by the temperature experienced as an embryo. Also, the perception of a female

to courtship by a male is influenced by incubation temperature. These data indicate that incubation temperature, the primary determiner of sex in this species, has differential effects on

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Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS CHRONOLOGY OF EMBRYONIC AND GONADAL DEVELOPMENT IN THE REEVES’ TURTLE, _MAUREMYS REEVESII_ Article Open access 08 July 2022

ROSIE, A DATABASE OF REPTILIAN OFFSPRING SEX RATIOS AND SEX-DETERMINING MECHANISMS, BEGINNING WITH TESTUDINES Article Open access 21 January 2022 A NEW EXPERIMENTAL MODEL FOR THE

INVESTIGATION OF SEQUENTIAL HERMAPHRODITISM Article Open access 24 November 2021 REFERENCES * Bull, J. J. _Evolution of Sex Determining Mechanisms_ (Cummings, Menlo Park, 1983). Google

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G. C. _Can. J. Zool._ 62, 1491–1494 (1984). Article  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Biology, Memphis State University,

Memphis, Tennessee, 38152, USA W. H. N. Gutzke * Institute of Reproductive Biology, Department of Zoology, University of Texas, Austin, Texas, 78712, USA David Crews Authors * W. H. N.

Gutzke View author publications You can also search for this author inPubMed Google Scholar * David Crews View author publications You can also search for this author inPubMed Google Scholar

RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Gutzke, W., Crews, D. Embryonic temperature determines adult sexuality in a reptile. _Nature_ 332,

832–834 (1988). https://doi.org/10.1038/332832a0 Download citation * Received: 16 December 1987 * Accepted: 18 March 1988 * Issue Date: 28 April 1988 * DOI: https://doi.org/10.1038/332832a0

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