Male reproductive hormones Academic Article uri icon


  • Sex differentiation and reproduction in male vertebrates are regulated by several different peptide and steroid hormones from various endocrine organs. In contrast, insects are thought not to have sex hormones at all (Maas and Dorn, 2005). In the closely related crustaceans, the androgenic gland (AG) appears to be unique, since this single gland regulates both male sex differentiation and male reproductive physiology and since, unlike in vertebrates, the endocrine and gametogenic functions are clearly separated into distinct organs, the androgenic gland and the testis, respectively. As to the other invertebrate phyla, very little is known about the role (or even the existence) of hormones that regulate sex differentiation or male reproductive physiology. This review is not intended to be comprehensive. It gives a brief historical overview of hormonal regulation of reproduction …

publication date

  • January 1, 2008