Abstract
Reproduction in teleost fish is regulated by the hypothalamus-pituitary-gonads axis (HPG). Under regulation of GnRH, the pituitary gland secrets two gonadotropins: follicle-estimulating (FSH) and luteinising hormones (LH), heterodimers formed by a common alpha subunit, and a beta subunit, which confers specific biological functions. The gonadotropins modulate the production of sex steroid…