The present review focuses on the roles of estrogens and aromatase (Cyp19a1a), the
enzyme needed for their synthesis, in fish gonadal sex differentiation. Based on the recent …

Cytochrome P450 (CYP) enzymes are members of the hemoprotein superfamily, and are
involved in the mono-oxygenation reactions of a wide range of endogenous and exogenous …

At present, aquaculture is the fastest growing sector of animal food production and holds
great potential as a sustainable solution for world food security. The ability to control sex is …

Many natural and synthetic compounds present in the environment exert a number of
adverse effects on the exposed organisms, leading to endocrine disruption, for which they …

Fish sex could be reversed at the undifferentiated stage of gonad by administration of
exogenous estrogen (E2) or blockade of endogenous estrogen synthesis with aromatase …

Fish are the largest phylum of living vertebrates, with around 30,000 fish species out of
approximately 50,000 vertebrate species (www. fishbase. com)[1]. Fish inhabit almost every …

Sexual fate can no longer be considered an irreversible deterministic process that once
established during early embryonic development, plays out unchanged across an …

Sex-change is an intriguing phenomenon that is common among certain groups of teleost
fishes. The process itself has a number of independent origins, although in each case it is …

Using genetically controlled all-female and all-male tilapia (Oreochromis niloticus), the role
steroid hormones play in the sex differentiation was analyzed histologically, ultrastructurally …

The honeycomb grouper (Epinephelus merra) is one of the smallest members of the
Serranidae family and is often used to study protogynous sex change. To determine the role …