The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 ISSN 0268-0130

2021 Impact Factor from Clarivate for the Herpetological Journal is 1.194, an increase of 0.332 from 2020.


pdf 01. Sex determination and sexual differentiation in reptiles

859 downloads

Open Access

pp.122-125

Authors: William H. N. Gutzke

Abstract: Sex determination and sexual differentiation in vertebrates have received a great deal of attention in the past few decades. The current view is that gonochorism (separate sexes) in the earliest vertebrates involved environmental control of sex determination and that genotypic sex determination evolved later (lntersexuality in the Animal Kingdom, 438, 1 975). Concurrent with the establishment of the latter was the gradual evolution of sex chromosome heteromorphism. Reptiles are excellent models for investigations focusing on sex determination' and sexual differentiation because they exhibit: (a) both genotypic and environmentally-determined sex determination, (b) various degrees of sex chromosome heteromorphism, ( c) both male and female heterogamety (the former also occurs in mammals, the latter in birds), and (d) variations from the typical I: 1 sex ratio predicted by Fisher (The Genetical Theory of Natural Selection, 1 930). This paper will review patterns of sex determination for the various groups of reptiles and will briefly discuss physiological mechanisms that may be regulating sexual differentiation.

Download Access:

The latest 8 issues can be downloaded when logged in with a Herpetological Journal subscription membership.

Individual articles can be purchased for download.

Older issues and occasional Open Access articles are available for public download

Submissions:

For further information and submission guidelines please see our Journal Instructions to Authors

pdfBHS Ethics Policy

IMPORTANT NOTE - JUNE 2020

Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

Aligning with this change, it is now no longer possible to purchase a subscription that includes a print copy of the HJ.  All members who have existing HJ print subscriptions that remain active as at end June 2020 will receive the full four 2020 print editions.  New subscribers or renewals after this time will only have option to subscribe to the online only subscription package.  Subscription pricing has been amended to reflect the content changes.