Alyssa Budd, James Cook University
Effect of temperature on sex in Australian barramundi (Lates calcarifer): Understanding the interplay between DNA methylation, gene expression and gonadal phenotype in a protandrous hermaphrodite fish
“Teleost fish are the only vertebrate group known to exhibit natural sex change, yet the molecular mechanisms allowing them to do so remain unknown. Recent evidence suggests that temperature may regulate adult sex change in sequential hermaphrodites, as well as sex determination in gonochoristic fish. Barramundi, Lates calcarifer, is a protandrous (male to female) hermaphrodite of high economic value. Using this species as an experimental model, my PhD investigates the role of temperature as an environmental driver of sex change, and through the analyses of DNA methylation, gene expression and sexual phenotype will help develop sex control strategies for aquaculture.”
The finals of the 2017 Asia-Pacific Three-Minute Thesis (3MT) competition, which challenges PhD students to communicate their research in a snappy three-minute presentation, were held on the 29 September at the University of Queensland, St Lucia Campus. Competitors came from 55 Universities from across Australia, New Zealand and North and South-East Asia.
The presentations were judged by distinguished figures in Australian science including Cosmos editor-in-chief Elizabeth Finkel.
Originally published by Cosmos as Three-minute thesis: Let’s talk about sex change
Curated content from the editorial staff at Cosmos Magazine.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.