Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Bird sex determination].

Simone Gilgenkrantz1

  • 1simone.gilgenkrantz@ club-internet.fr

Medecine Sciences : M/S
|November 5, 2004
PubMed
Summary
This summary is machine-generated.

Sex determination in vertebrates evolved diverse pathways. Comparative studies reveal conserved and divergent genetic elements, highlighting functional plasticity in gonadal differentiation across species.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[A stone ablation in Oberhaslach in Alsace, in 1810].

La Revue du praticien·2020
Same author

[Asuicide in Alsace in 1802].

La Revue du praticien·2019
Same author

Mandibuloacral dysplasia with type B lipodystrophy in a patient from Chile.

American journal of medical genetics. Part A·2019
Same author

Kusomoto Ine, the 1st woman-doctor in Japan.

Histoire des sciences medicales·2018
Same author

[A woman doctor in Algeria. The diary of Dorothée Chellier (1895-1899)].

Medecine sciences : M/S·2016
Same author

[Three female physicians of the Montpellier faculty at the turn of the 19th century].

Histoire des sciences medicales·2016

Area of Science:

  • Evolutionary biology
  • Genetics
  • Comparative genomics

Context:

  • Sex determination mechanisms vary significantly across vertebrate species.
  • Mammalian (XX:XY) and avian (ZZ:ZW) systems represent distinct evolutionary pathways.
  • Understanding these differences is key to deciphering conserved and divergent genetic factors.

Purpose:

  • To compare sex determination pathways in vertebrates, focusing on mammals and birds.
  • To investigate the role of conserved genes and functional plasticity in gonadal differentiation.
  • To explore the evolutionary divergence of sex-determining factors.

Summary:

  • Sex determination evolved early, with genes isolating into sex chromosomes (gonosomes).
  • Mammals utilize a Y-chromosome-driven male determination (XX:XY), while birds use a W-chromosome-driven female determination (ZZ:ZW).

Related Experiment Videos

  • Estrogens are crucial for gonadal differentiation in chickens and lower vertebrates. Genes critical for mammalian sex determination are also found in chickens but exhibit different expression patterns, indicating functional plasticity. The W-linked female determinants remain elusive.

    • Impact:

    • Broadens understanding of the evolution and diversity of sex determination mechanisms.
    • Identifies conserved and divergent genetic elements influencing gonadal development.
    • Provides insights into the functional plasticity of sex determination genes across species.