Brain mechanisms underlying differences between male and female teleosts

2016 Fiscal Year Final Research Report

• Project/Area Number: 25292124
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Aquatic life science
• Research Institution: The University of Tokyo
• Principal Investigator: Okubo Kataaki 東京大学, 農学生命科学研究科, 准教授 (10370131)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 水産学 / 生理学 / 神経科学

Outline of Final Research Achievements

Teleost fish exhibit marked sex differences in a wide range of traits, including aggressive and reproductive behavior, growth, sexual maturation, and stress response. However, it remains to be elucidated what mechanisms in the teleost brain underlie these sex differences. In the present study, we have identified a novel teleost-specific gene that is expressed in the brain and presumably involved in stress response, and named it teleocortin. We have also provided the evidence that glucocorticoid receptor 1 expressed in the preoptic area most likely plays an important role in behavioral sex differences.

Free Research Field

水圏生命科学