Tina Graceline Kirubakaran has recently published her second paper of her PhD.
For the vast majority of the 26,000 species of bony fishes (teleosts), the mechanism of sex determination is still a complete mystery. In the paper “Characterization of a male specific region containing a candidate sex determining gene in Atlantic cod” recently published in Scientific Reports we describe the master sex determining region in Atlantic cod (Gadus morhua). The male specific region harbor a single gene zkY (zinc knuckle on the Y chromosome), which is expressed at high levels from early larval stages prior to the onset of sex differentiation Successful amplification and sequencing of the male-specific sequences in Greenland cod and Artic cod suggests that the masculinization gene in codfishes emerged more than 7.5 MYA.
If you are interested in this work, the article is available here.
Published 4th February 2019