An overview of factors influencing sex determination and gonadal development in birds

M Clinton, L C Haines

Research output: Contribution to journalArticlepeer-review

Abstract

The morphological development of the embryonic gonads is very similar in birds and mammals, and recent evidence suggests that the genes involved in this process are conserved between these classes of vertebrates. The genetic mechanism by which sex is determined in birds remains to be elucidated, although recent studies have reinforced the contention that steroids may play an important role in the structural development of the testes and ovaries in birds. So far, few genes have been assigned to the avian sex chromosomes, but it is known that the Z and W chromosomes do not share significant homology with the mammalian X and Y chromosomes. The commercial importance of poultry breeding has motivated considerable investment in developing physical and genetic maps of the chicken genome. These efforts, in combination with modern molecular approaches to analyzing gene expression, should help to elucidate the sex-determining mechanism in birds in the near future.
Original languageEnglish
Pages (from-to)97-115
Number of pages19
JournalEXS
Issue number91
Publication statusPublished - 2001

Fingerprint

Dive into the research topics of 'An overview of factors influencing sex determination and gonadal development in birds'. Together they form a unique fingerprint.

Cite this