| Date | 2022.2.28 (10：00 - 11：00) |
|---|---|
| Venue | |
| Google Classroom Code | 7clvusp |
| Speaker | Dr. John Godwin |
| Affiliation | North Carolina State University (U.S.A.) |
| Title | Google classroom is now available. 1. Go to https://classroom.google.com and sign in. 2. At the upper right, click 「+」 and click 「join」. 3. Enter the class code 7clvusp --------------------------------------------------------------------------- ※On-line Seminar by Zoom. https://zoom.us/j/98961370577?pwd=U1V4OUtEc25rTDVyS2NaM0E4anRHZz09 Meeting ID: 989 6137 0577 Passcode: h7ckit ---------------------------------------------------------------------------------------------------------- ◆Dr. John Godwin (Professor, Department of Biological Sciences, North Carolina State University, U.S.A.) ◆Title： "Sex change and sexual lability in fishes” 〈Abstract〉 Fishes display an extraordinary diversity of sex determination mechanisms including environmental sex determination with examples of both temperature and social cues being the critical influence determining whether an individual becomes female or male. We explore this variation in field-based studies with two species, the Caribbean bluehead wrasse that exhibits female-to-male functional sex change under social control and the southern flounder where sex determination is influenced by temperature. The transduction of environmental cues into sex determination responses remains poorly understood despite decades of study, but some basic principles are becoming clear from these studies. Both estrogen production in the gonads and brain and the endocrine stress response appear to play important roles in guiding environmental sex determination and do so through effects on conserved sex determination pathways. The mechanisms for these responses provide a fascinating example of how sex can adapt to environmental conditions and a useful system for studying phenotypic plasticity more generally. |
| Language | English |
| Intended for | Everyone is welcome to join. |
| Co-Organized by | Institute of Global Innovation Research, “FOOD” Watanabe Team Excellent Leader Development for Super Smart Society by New Industry Creation and Diversity |
| Contact | Institute of Global Innovation Research, Institute of Agriculture Prof. Gen Watanabe Email: gen(at)cc.tuat.ac.jp |
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