Neuroendocrine correlates of sex-role reversal in barred buttonquails.

ABSTRACT: Sex differences in brain structure and behaviour are well documented among vertebrates. An excellent model exploring the neural mechanisms of sex differences in behaviour is represented by sex-role-reversed species. In the majority of bird species, males compete over access to mates and resources more strongly than do females. It is thought that the responsible brain regions are therefore more developed in males than in females. Because these behaviours and brain regions are activated by androgens, males usually have increased testosterone levels during breeding. Therefore, in species with sex-role reversal, certain areas of the female brain should be more developed or steroid hormone profiles should be sexually reversed. Here, I studied circulating hormone levels and gene expression of st

SUBMITTER: Voigt C 

PROVIDER: S-EPMC5136596 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature