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[Crossed graft of embryonic testis between quail and chick embryos: contribution to the study of the mechanism of female bird embryo masculinization].

Authors
  • Rashedi, M
  • Maraud, R
  • Audine, M
  • Piet, M
  • Castet, M C
Type
Published Article
Journal
Comptes rendus des séances de la Société de biologie et de ses filiales
Publication Date
Jan 01, 1991
Volume
185
Issue
4
Pages
211–217
Identifiers
PMID: 1836416
Source
Medline
License
Unknown

Abstract

Quail, or chick embryonic testes grafted respectively in the extraembryonic coelom of chick or quail embryos induce both a Mullerian duct regression and a masculinization of the female host gonads up to the differentiation of two testes, in some cases. Such a result confirms the fact evidenced previously in other bird species (chick and duck) that the testis-inducer is interspecific. Quail cells are not observed in histological sections of embryonic gonads of testis-grafted chicks. This allows to discard a possible influence of cells migrating from the graft to the host. The grafted testes act then through substance/s secreted in the blood stream. Present and previous experimental data strongly suggest that the same substance, i.e. the so-called anti-Mullerian hormone, is responsible for both MD regression and gonadal sex reversal.

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